Nanowires. Medical search. Frequent questions

Semiconductor nanowires make good computer chip building blocks because their long, narrow shape and good electronic properties enable them to be used both as wiring and to make functional devices like transistors, said Lieber. (trnmag.com)
Over the past two decades, research in the field of semiconductor nanowires has helped to reshape our understanding of atomic-scale crystal assembly and uncover novel physical phenomena at the nanometre scale," explains Xiuling Li, a professor of electrical and computer engineering at Illinois. (compoundsemiconductor.net)
In a paper to appear in the IEEE (Institute of Electrical and Electronics Engineers) journal Electron Device Letters, U. of I. electrical and computer engineering professor Xiuling Li and graduate research assistant Seth Fortuna describe the first metal-semiconductor field-effect transistor fabricated with a self-assembled, planar gallium-arsenide nanowire channel. (nanotech-now.com)
Compound semiconductor nanowires, such as gallium arsenide, are especially desirable because of their better transport properties and versatile heterojunctions. (nanotech-now.com)
By replacing the standard channel in a metal-semiconductor field-effect transistor with one of our planar nanowires, we demonstrated that the defect-free nanowire's electron mobility was indeed as high as the corresponding bulk value," Fortuna said. (nanotech-now.com)
Semiconductor nanowire lasers, due to their ultra-compact physical sizes, highly localized coherent output, and efficiency, are promising components for use in fully integrated nanoscale photonic and optoelectronic devices. (nanowerk.com)
Following extensive research with semiconductor materials, an alternative approach to nanowire lasers has been developed using organic molecules. (chemistryviews.org)
A cornerstone in the successful application of semiconductor nanowire devices is controlled impurity doping. (lu.se)
In this review article, we discuss the key results in the field of semiconductor nanowire doping. (lu.se)
Since 2005 Weman is leading a research group at NTNU on III-V semiconductor nanowires and graphene for use in optoelectronic applications. (idtechex.com)
CrayoNano is developing optoelectronic devices based on semiconductor nanowires on graphene. (idtechex.com)
Materials of primary interests are metal nanoparticles and semiconductor nanowires and naonribbons. (inderscience.com)
The researchers are aiming at understanding the fundamental processes involved in semiconductor nanowire fabrication, in particular for understanding the factors that determine crystal structure and composition of complex materials. (lu.se)
Geometrically enhanced light absorption in semiconductor nanowires make them interesting for the future generation of solar cells. (lu.se)
The main objective is to exploit the advantages of III-V semiconductor nanowires to develop novel PV devices with high conversion efficiency at moderate production cost. (lu.se)
We use time-resolved photoemission electron microscopy (TR-PEEM) to follow the relaxation of photogenerated hot electrons in III-V semiconductor nanowires. (lu.se)
Mikkelsen, A. Unraveling the Ultrafast Hot Electron Dynamics in Semiconductor Nanowires. (lu.se)

For the structure, SEM and XRD measurements indicated that the as-grown ZnO nanowires microscale was of hexagonal wurtzite phase with a high crystalline quality, and TEM shows that the ZnS is uniformly distributed on the surface of the ZnO nanowires. (hindawi.com)
The main operating device is based on piezoelectric nanogenerator (NG) achieved using ZnO nanowires grown hydrothermally on paper substrate. (springer.com)
A dense array of nanowires grown directly on graphene. (compoundsemiconductor.net)
In the March 20th issue of Advanced Materials , the researchers present the first report of a novel solar cell architecture based on dense arrays of coaxial p-n junction InGaAs nanowires on InAs stems grown directly on graphene without any metal catalysts or lithographic patterning. (compoundsemiconductor.net)
The gallium-arsenide nanowire channel used in the researchers' demonstration transistor was grown by metal organic chemical vapor deposition using gold as a catalyst. (nanotech-now.com)
Compared with AlGaN epitaxial thin-film layers, defect-free AlGaN nanowires can be grown directly on many substrates (including metals) due to the efficient strain relaxation associated with the large surface-to-volume ratio. (semiconductor-today.com)
We report on electrical and optical properties of p(+)-i-n(+)photodetectors/solar cells based on square millimeter arrays of InP nanowires (NWs) grown on InP substrates. (harvard.edu)
Left: Cross-sectional SEM of as-grown nanowires. (lu.se)

The process builds upon the lab's previous research to build coaxial nanowire cables that was reported in Nano Letters last year. (sciencedaily.com)
The research, which was published in the journal Nano Letters (" Tailoring Lithiation Behavior by Interface and Bandgap Engineering at the Nanoscale "), describes a method by which the typical surface diffusion of lithium ions into a nanowire electrode is blocked and instead the ions are diffused layer-by-layer along the length of the nanowire. (ieee.org)
The new technology starts with germanium nanowires that are then coated with silicon.The research builds on previous work of Dayeh and his colleagues published in the journal Applied Physics Letters and again in Nano Letters in which they demonstrated control over the heterostructuring of germanium-silicon nanowires. (ieee.org)
Transferring the self-aligned planar nanowires while maintaining both their position and alignment could enable flexible electronics and photonics at a true nanometer scale," the researchers wrote in the December 2008 issue of the journal Nano Letters. (nanotech-now.com)

Researchers have created the first coils of silicon nanowire on a substrate that can be stretched to more than double their original length, moving us closer to incorporating stretchable electronic devices into clothing, implantable health-monitoring devices, and a host of other applications. (sciencedaily.com)
In order to create stretchable electronics, you need to put electronics on a stretchable substrate, but electronic materials themselves tend to be rigid and fragile," says Dr. Yong Zhu, one of the researchers who created the new nanowire coils and an assistant professor of mechanical and aerospace engineering at NC State. (sciencedaily.com)
Zhu's team put a rubber substrate under strain and used very specific levels of ultraviolet radiation and ozone to change its mechanical properties, and then placed silicon nanowires on top of the substrate. (sciencedaily.com)
Other researchers have been able to create coils using freestanding nanowires, but have so far been unable to directly integrate those coils on a stretchable substrate. (sciencedaily.com)
The major breakthrough was not simply fabricating a Si nanowire network with seamless junctions, but also transferring that network onto a flexible polymer substrate, according to according to K. Mallikarjuna Rao , a scientist at IACS and co-author of the study. (ieee.org)
Researchers at the University of Illinois at Urbana-Champaign have achieved new levels of performance for seed-free and substrate-free arrays of nanowires from class of materials called III-V directly on graphene. (compoundsemiconductor.net)
Under air mass 1.5 global solar illumination, the core-shell In0.25Ga0.75As (Eg ~ 1.1 eV) nanowire arrays on graphene demonstrate a conversion efficiency of 2.51 percent, representing a new record for substrate-free, III-V NW-based solar cells. (compoundsemiconductor.net)
By adjusting the substrate temperature, the thickness and length of the bismuth nanowires can be tuned over very wide ranges (60-400 nm) and (1- >100 mm), respectively. (bnl.gov)
This technique produces bismuth nanowires in quantities limited only by the size of the substrate on which they are deposited. (bnl.gov)
The self-aligned orientation of the nanowires is determined by the crystal structure of the substrate and certain growth parameters. (nanotech-now.com)
Herein, graphene underlayers were applied in the fabrication of nanogap-based hydrogen sensors to promote the lateral expansion of a Pd nanowire upon hydrogenation by reducing the adhesion between the metal and the substrate. (bvsalud.org)

A group at the CFN has demonstrated a new technique to produce single- crystal nanowires atop arbitrary substrates, including glass, silicon, and metal, when an intermediate layer of vanadium is present. (bnl.gov)
In earlier work, Li and Fortuna demonstrated they could grow the nanowires and then transfer-print them on other substrates, including silicon, for heterogeneous integration. (nanotech-now.com)

In searching for an ideal material for nanowire lasing, researchers at Columbia University and the University of Wisconsin-Madison investigated a new class of hybrid organic-inorganic semiconductors, methyl ammonium lead halide perovskites (CH 3 NH 3 PbX 3 ), which is emerging as a leading material for high-efficiency photovoltaic solar cells due to low cost, simple processing and high efficiencies. (nanowerk.com)
Towards High-Efficiency Nanowire/Graphene Hybrid Solar Cells (Graphene LIVE! (idtechex.com)
The work is conducted within the Nanometer Structure Consortium (nmC@LU), where extensive research is conducted to develop nanowire-based applications in electronics, solar cells, solid state lighting and other areas. (lu.se)
We aim to develop nanowire-perovskite tandem junction solar cells with high solar energy harvesting efficiency. (lu.se)
InP nanowire array solar cells achieving 13.8% efficiency by exceeding the ray optics limit. (lu.se)

In the new work, the researchers grew 10-micron-long nanowires via electrodeposition in the pores of an anodized alumina template. (sciencedaily.com)
Researchers at Harvard University assembled the rudimentary computer out of nanowires 3,000 times finer than human hair using a simple manufacturing process. (trnmag.com)
The researchers combined nanowire transistors to form several types of logic gates, which use these on and off states to do calculations. (trnmag.com)
The researchers built the transistors by chemically growing silicon and galium nitride nanowires 10 to 30 nanometers in diameter and several microns long. (trnmag.com)
The researchers' nanowire transistors boost electrical signals as they pass through, which makes it possible for many of them to be connected without the signal fading away. (trnmag.com)
Though the researchers were able to build the logic gates chemically, they had to connect groups of gates using lithographically-formed electrodes, and they had to position the nanowire logic gates on the electrodes by hand. (trnmag.com)
The researchers are currently working on assembling the nanowires directly on the electrodes, said Lieber. (trnmag.com)
Harvard University researchers have found that molecular markers indicating the presence of cancer in the body are readily detected in blood scanned by special arrays of silicon nanowires - even when these cancer markers constitute only one hundred-billionth of the protein present in a drop of blood. (medgadget.com)
Now an international group of researchers from India and Ireland have developed a new approach based on transparent nanowire networks made from silicon-on-insulator (SOI) that appears it could finally take the crown from ITO. (ieee.org)
In research described in the journal ACS Nano , researchers from the Indian Association for the Cultivation of Science (IACS) and the Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) in Ireland have for the first time fabricated silicon (Si) nanowire networks with seamless junctions. (ieee.org)
Nanowerk News ) Researchers at the University of Pittsburgh have coaxed gold into nanowires as a way of creating an inexpensive material for detecting poisonous gases found in natural gas. (nanowerk.com)
While the diameter of the transistor's nanowire channel was approximately 200 nanometers, nanowires with diameters as small as 5 nanometers can be made with the gold-catalyzed growth technique, the researchers report. (nanotech-now.com)
In work presented in the current paper, the researchers grew the gallium-arsenide nanowire channel in place, instead of transferring it. (nanotech-now.com)
In contrast to the common types of non-planar gallium arsenide nanowires, the researchers' planar nanowire was free from twin defects, which are rotational defects in the crystal structure that decrease the mobility of the charge carriers. (nanotech-now.com)
Now, researchers demonstrated that nanowires made from lead halide perovskite are the most efficient nanowire lasers known ( Nature Materials , 'Lead halide perovskite nanowire lasers with low lasing thresholds and high quality factors' ). (nanowerk.com)
And now researchers from the University of Sydney and Japan's National Institute for Material Science have shown they can use a random network of nanowires to replicate both the structure and the dynamics of the brain to solve simple processing tasks. (singularityhub.com)
In a pape r in Nature Communications , the researchers describe how they created a random network of nanowires 10 micromete r s long and no thicker than 500 nanometers and then subjected it to electrical stimulation. (singularityhub.com)
The researchers anticipate that this structure, particularly the demonstration of the effectiveness of polarization-induced n- and p-doping, will find broad practical application in fabricating self-assembled nanowire-based high-efficiency devices, such as lasers, photodetectors, modulators and photonic integrated circuit (PIC)-related devices. (semiconductor-today.com)
Recently a team of IQUIST researchers at the University of Illinois Urbana-Champaign added a twist to their STM by replacing the tip with a nanowire made from an exotic material, samarium hexaboride (SmB 6 ). (innovations-report.com)
The findings in this paper will be important for researchers aiming to understand the processes involved in nanowire growth in order to control the resulting material, for any chosen application, says Kimberly Dick Thelander. (lu.se)

Gases containing gallium, indium, and arsenic are pumped into a chamber where the graphene sheet sits, prompting the nanowires self-assemble, growing by themselves into a dense carpet of vertical wires across the graphene's surface. (compoundsemiconductor.net)
The technique uses self-assembled, self-aligned, and defect-free nanowire channels made of gallium arsenide. (nanotech-now.com)
Our new planar growth process creates self-aligned, defect-free gallium-arsenide nanowires that could readily be scaled up for manufacturing purposes," said Li, who also is affiliated with the university's Micro and Nanoelectronics Laboratory and the Beckman Institute. (nanotech-now.com)
Nanowire nanocluster hybrid chemical sensors were realized by functionalizing gallium nitride (GaN) nanowires (NWs) with titanium dioxide (TiO2) nanoclusters for selectively sensing benzene and other related aromatic compounds. (nist.gov)

It is composed of hundreds of nanowire transistors, each of which is a switch about ten-thousand times thinner than a human hair. (foresight.org)
Luckily, though, new research in the area of nanowires - surfaces "thousands of times thinner than a human hair" - could mitigate the lithium-ion batteries most glaring flaw. (digitaltrends.com)

A silicon nanowire carries electrical current when a perpendicular galium nitride nanowire lowers the silicon nanowire's electrical resistance, turning the transistor on. (trnmag.com)
Silicon nanowire prototype being prepared for property measurements in a cryostat. (lbl.gov)

These nanowires could advance applications in nanophotonics and optoelectronic devices. (nanowerk.com)

Middle: Cross-sectional optical microscopy (not false colored) of blue-green CsPbCl1.1Br1.9-CsPbBr3 heterostructured nanowires [Zhang 2022]. (lu.se)
Single nanowire transistor [Lamers 2022]. (lu.se)

The breakthrough was being able to form a transistor simply by crossing two of the nanowires. (trnmag.com)
We have developed a... crossed-nanowire field effect transistor that is readily amenable to high-density integration without the use of lithography," said Charles Lieber, a chemistry professor at Harvard University. (trnmag.com)

The high quality planar nanowires can also be used in nano-injection lasers for use in optical communications. (nanotech-now.com)
Perovskite-based nanowire lasers are the most efficient known. (nanowerk.com)
Efficient nanowire lasers could benefit fiber optic communications, pollution characterization, and other applications. (nanowerk.com)
Nanowire lasers have attracted increasing interest for low-power-consuming and ultrasmall photonic devices. (chemistryviews.org)
The nanowire lasing in both p- and n-type molecular semiconductors could lead to the fabrication of organic nanowire diode lasers. (chemistryviews.org)

The experiments are based on InAs nanowires with epitaxially defined heterostructures of InP or InAsP that form energy filters. (lu.se)
In our recent work on InAs nanowires [1], we focused on hot electron dynamics within the first few ps after excitation. (lu.se)
Nanowire segments of the same material but different crystal phase (wurtzite or zinc-blende) were found to exhibit different cooling dynamics which could be attributed to the different optical properties of wurtzite/zinc blende InAs. (lu.se)

From these new composites which have gained much importance, we can cite ZnO nanowires that have been recognized as one of the most promising nanomaterials due to their various properties and applications [ 4 - 7 ]. (hindawi.com)
Article: Nanoparticles and nanowires: synchrotron spectroscopy studies Journal: International Journal of Nanotechnology (IJNT) 2008 Vol.5 No.9/10/11/12 pp.1194 - 1246 Abstract: This paper reviews the research in nanomaterials conducted in our laboratory in the last decade using conventional and synchrotron radiation techniques. (inderscience.com)
Synchrotron studies of prototype systems such as gold nanoparticles, 1-D nanowires of group IV materials, C, Si and Ge as well as nanodiamond, and compound semiconductors, ZnS, CdS, ZnO and related materials are used to illustrate the power and unique capabilities of synchrotron spectroscopy in the characterisation of local structure, electronic structure and optical properties of nanomaterials. (inderscience.com)

CEO John LeMoncheck is using tiny silver nanowires to build a major presence for Cambrios Technologies in the booming touch screen market. (industryweek.com)
You can make a thinner, much lighter touchscreen using our silver nanowires," LeMoncheck says. (industryweek.com)
Memristive properties are also found at the junctions where silver nanowires overlap with each other, which has made them an increasingly popular target for neuromorphic engineers. (singularityhub.com)

The authors demonstrate a large ensemble of quantum dots which is characterized using a cryogenic multiplexer-demultiplexer circuit based on selective area growth nanowires, establishing the feasibility of scaling future quantum circuits. (nature.com)
By combining the enhanced catalytic properties of the TiO2 nanoclusters with the sensitive transduction capability of the nanowires, an ultra-sensitive and selective chemical sensing architecture is demonstrated. (nist.gov)
Key for the fabrication of these devices is the unique selective and controllable transformation of Si and Ge nanowires into Al, which enables high-quality monolithic and single-crystalline Al contacts, fulfilling compatibility with modern CMOS fabrication. (researchgate.net)
Specifically, three experimental papers (I-III) study the generation of electrical power by extracting charge carriers across energy selective filters within single semiconducting nanowires. (lu.se)

Different architectures integrating hybrid perovskite semiconductors with III-V nanowire-based solar cell devices. (lu.se)

The batteries employ vertical arrays of nickel-tin nanowires perfectly encased in PMMA, a widely used polymer best known as Plexiglas. (sciencedaily.com)
While initial rounds of cancer testing today identify only whether or not cancer is present, nanowire arrays have the potential to immediately fill in details on exactly what type of cancer is present. (medgadget.com)
The simplicity of the technique and the universality of the mechanism open a new avenue for the growth of nanowire arrays of a variety of materials. (bnl.gov)
The team developed a technology that uses wafer-scale arrays of porous silicon nanowires with ultra-thin silicon crystallite that allows for an 18 times greater "figure of merit" (an expression representing performance or efficiency) than other high-temperature or bulk silicon thermoelectric technologies. (lbl.gov)

Based on the characterizations, the defects formation mechanism and the influence on the nanowire growth kinetics and behavior are also discussed. (aps.org)

Semiconducting nanowires (NWs) offer the unprecedented opportunity to host different crystal phases in a nanostructure, which enables the formation of polytypic heterostructures where the material composition is unchanged. (icmab.es)
Using the sub-50nm spatial resolution of the PEEM, we can resolve separate segments of nanowire heterostructures and investigate the correlation between local structure and relaxation dynamics. (lu.se)

The Rice laboratory of Pulickel Ajayan found a way to reliably coat single nanowires with a smooth layer of a PMMA-based gel electrolyte that insulates the wires from the counter electrode while allowing ions to pass through. (sciencedaily.com)
Usually, nanowires exposed to electrical currents expand, grow brittle, and eventually crack, but the coated electrode "[held] its shape much better," said Thai. (digitaltrends.com)
This research proves that a nanowire-based battery electrode can have a long lifetime and that we can make these kinds of batteries a reality. (digitaltrends.com)

The result was a highly conductive jumble of gold nanowires and carbon nanotubes. (nanowerk.com)
They are free from manufactured products such as microelectronics, electrodes, carbon nanotubes, and nanowire semiconductors. (cdc.gov)

Li's research group uses a method called van der Waals epitaxy to grow nanowires from the bottom up on a two-dimensional sheet, in this case, graphene. (compoundsemiconductor.net)
Schematic representations of the three different nanowire geometries investigated (a-c) and a diagram of a nanowire array-on-graphene prototype solar cell device structure (d). (compoundsemiconductor.net)
Graphene-Promoted Adhesion-Reduced Expansion of Discontinuous Palladium Nanowires upon Hydrogenation. (bvsalud.org)
In order to clarify details as well as mechanisms underlaid of graphene -enhanced Pd expansion, nanowire samples with serial lengths (6-48 µm) and gaps (0-260 nm in width) were controllably prepared on single-layer graphene (SLG), double-layer graphene (DLG), and quadruple-layer graphene (QLG, DLG × 2) via the combination of electron beam lithography (EBL) and electron beam deposition (EBD) technology . (bvsalud.org)

Cambrios creates very fine wires of silver - these nanowires are just tens of nanometers in diameter and tens of microns long- and immerses them in a coating that can be applied to various materials to create a conductive layer. (industryweek.com)

Bacterial nanowires (also known as microbial nanowires) are electrically conductive appendages produced by a number of bacteria most notably from (but not exclusive to) the Geobacter and Shewanella genera. (wikipedia.org)
For example, organisms in the genus Shewanella have been observed to form electrically conductive nanowires in response to electron-acceptor limitation. (wikipedia.org)
After electroless silver plating, these fibers were completely metallized, creating electrically conductive nanowires under mild conditions while leaving the peptide fiber core intact. (rsc.org)

Therefore, considerable effort has been devoted to the design and controlled fabrication of core/shell structured ZnO/ZnS nanowires. (hindawi.com)
Further, in contrast with other fabrication methods, with this new technique there is no need for a catalyst to activate the production of the nanowires, thus avoiding inevitable contamination and enabling high-quality material. (bnl.gov)
It's a non-lithographic process that can precisely control the nanowire dimension and orientation, yet is compatible with existing circuit design and fabrication technology. (nanotech-now.com)
The disappearance of the resistive switching is also analyzed with two kinds of fabrication approaches Focused Ion/Electron Beam involved in the making the device and a summary of both length and fabrication dependences of resistive switching in the ZnO nanowire is presented. (amrita.edu)
Nanowires are considered important structures for next-generation electronics, and in order to assess the potential of these structures we need to understand the processes that control their fabrication. (lu.se)

Geobacter nanowires were originally thought to be modified pili, which are used to establish connections to terminal electron acceptors during some types of anaerobic respiration. (wikipedia.org)
These stacked cytochrome nanowires form a seamless array of hemes which stabilize the nanowire via pi-stacking and provide a path for electron transport. (wikipedia.org)
Species of the genus Geobacter use nanowires to transfer electrons to extracellular electron acceptors (such as Fe(III) oxides). (wikipedia.org)
The reported presence of outer membrane cytochromes, and lack of conductivity in nanowires from the MtrC and OmcA-deficient mutant directly support the proposed multistep hopping mechanism for electron transport through Shewanella nanowires. (wikipedia.org)
Additionally, nanowires can facilitate long-range electron transfer across thick biofilm layers. (wikipedia.org)
By connecting to other cells around them, nanowires allow bacteria located in anoxic conditions to still use oxygen as their terminal electron acceptor. (wikipedia.org)
It wasn't until 1988 that extracellular electron transport (EET) was observed for the first time with the independent discoveries of Geobacter and Shewanella bacteria and their respective nanowires. (wikipedia.org)
Microorganisms have shown to use nanowires to facilitate the use of extracellular metals as terminal electron acceptors in an electron transport chain. (wikipedia.org)
It has been speculated nanowires may function as conduits for electron transport between different members of a microbial community. (wikipedia.org)
Electron microscope images of nanowires taken after many charge/discharge cycles showed no breaks in the PMMA casing -- not even pinholes. (sciencedaily.com)
High-resolution transmission electron microscopy (HRTEM) and selected area electron diffraction (SAED) are used to investigate structural defects in zinc blende SiC nanowires produced by a vapor-solid (VS) mechanism. (aps.org)
Inset) Dark-field STEM image and electron-diffraction pattern respectively indicate that the nanowires have smooth surfaces and are single crystalline. (bnl.gov)
CFN's Materials Synthesis and Characterization, Electron Microscopy, and Advanced UV and X-ray Probes Facilities were used for synthesis of nanowires and their structural characterization. (bnl.gov)
The high electron mobility nanowire channel could lead to smaller, better and faster devices. (nanotech-now.com)
Scanning electron microscope image (left) of samarium hexaboride nanowire bonded to STM, with images from new study (middle and right). (innovations-report.com)
Kimberly Dick Thelander published in a recent article in Science her new discoveries of nanowire growth rate made with in-situ transmission electron microscope. (lu.se)
We found that hot electrons are transported to the nanowire surface on a 100 fs time scale due to surface band bending, and experimental evidence suggests that significant cooling occurs within the first ps via electron-hole scattering. (lu.se)

Synthesis and characterization of gold nanowires. (nanowerk.com)

Gate-all-round field effect transistors (FETs) with channels fabricated from highly stacked nanowires can enhance the drive current of such devices for a fixed footprint. (nature.com)
The nanowire design could be ready for practical use before today's silicon technology loses out to the laws of physics in the quest to make smaller and faster transistors. (trnmag.com)
The nanowire transistors could be packed one billion to a square centimeter, and narrower nanowires would permit one trillion transistors per square centimeter, he said. (trnmag.com)
The nanowire transistors use very little power because they are "nonvolatile. (foresight.org)
Considering their planar, self-aligned and transferable nature, the nanowire channels could help create higher performance transistors for next-generation integrated circuit applications, Li said. (nanotech-now.com)

We have developed a 3‑terminal, nanowire-based superconducting electrothermal device which has no Josephson junctions. (mit.edu)
Our main focus will be to combine efficient III-V nanowire devices with emerging hybrid materials to form nanostructured tandem junctions. (lu.se)

ZnO/ZnS core/shell nanowires are formed by ZnO nanowires core surrounded by a very thin layer of porous ZnS shell principally constituted with a crystal which is about 15-20 nm in diameter. (hindawi.com)
They also demonstrated how this technique can be used for regulating the thermoelectric efficiency of tin telluride formed into nanowires 1-2 atoms in diameter. (materialstoday.com)
Herein, we report the synthesis of mesoporous Pt nanotubes using Pluronic P123 as soft templates and Ag nanowires with 50 nm in diameter as hard templates. (cdc.gov)

In the method, ZnS nanoparticles were prepared by reaction of ZnO nanowires with Na 2 S in aqueous solution at low temperature and also we have discussed the growth mechanism of ZnO/ZnS nanowires. (hindawi.com)

Sofia Fahlvik Svensson's doctoral thesis presents the first experimental proof that nanowires can in fact improve the efficiency of thermoelectric devices. (lu.se)

Under optical pumping, isolated single nanowires demonstrated axial Fabry-Pérot lasing, i.e., they act like a laser oscillator in which two mirrors are separated by an amplifying medium. (chemistryviews.org)
We study the photocurrent from photoexcited charge carriers in GaAs/GaP axial and radial hetero-structured nanowires (NWs). (aps.org)
Nanowire array for harvesting the solar energy in axial geometry designed for optimally capturing the different parts of the solar spectrum by use of multi-junction technology. (lu.se)

The location of GaN nanowires was controlled with essentially perfect selectivity using patterned SiNx prior to molecular beam epitaxy growth. (nist.gov)

The results indicate that at low temperatures (10-375 K), the nanowires yield through the nucleation of a sharp crack and fails in brittle manner. (arxiv.org)
Further, the dislocation multiplication mechanism assisted by the kink nucleation from the nanowire surface observed at high temperatures has been presented. (arxiv.org)

The materials grew in epitaxially oriented nanowires with lengths ranging from 5 to 100 µm (pictured), depending on the positions of the mask holes. (chemistryviews.org)

The diameters of the resulting nanowires were controlled by the size of the mask openings. (nist.gov)

This is the first report on the high yield (>70%) synthesis of single crystalline bismuth nanowires, a material with potentially exploitable and intriguing thermoelectric properties. (bnl.gov)
Since bulk silicon does not have good thermoelectric properties, we use silicon to create nanowires - then the physics changes. (lbl.gov)

In this study, we report the growth of vertically well-aligned ZnO nanowires by cathodic electrodeposition in aqueous zinc chloride electrolyte moreover and after we produce nanocomposites of ZnO/ZnS by partial conversion via a sulfidation operation in surfaces ZnO nanowires which reacts with Na 2 S that is used as sulphur source. (hindawi.com)
In this work, we design and fabricate a wireless system with the main operating device based on zinc oxide (ZnO) nanowires. (springer.com)

Existing solutions involve the use of nanoscale materials either in the form of nanowire networks or 2D materials," said Rao. (ieee.org)

A topological image of a nanowire is shown (left insert). (nanowerk.com)
However, the current rectification effect discovered in topological insulator nanowires arises as a result of quantum mechanics and is extremely controllable. (myscience.ch)
What's great about the topological insulator nanowires is that we can artificially produce essentially the same physics but with a much larger magnitude," says Dr. Henry Legg, Georg H. Endress postdoctoral fellow at the University of Basel and first author of the paper. (myscience.ch)

This study demonstrates the feasibility of using ZnO nanowire piezoelectric NG as a low-frequency self-powered sensor, with potential applications in wireless sensor networks. (springer.com)

Since their discoveries, other nanowire containing microbes have been identified, but they remain the most intensively studied. (wikipedia.org)

New approach based on catalysed crystal growth allowed synthesizing twisted nanowires of van der Waals materials and fine tuning of their topology. (nature.com)
Led by Andrij Vasylenko, Samuel Marks, Jeremy Sloan and David Quigley from Warwick's Department of Physics, in collaboration with colleagues at the universities of Cambridge and Birmingham in the UK, the scientists have found that the most effective thermoelectric materials can be realized by shaping them into the thinnest possible nanowires. (materialstoday.com)
Depending on the materials, nanowires can be used for functional electronics and optoelectronics applications," Mohseni adds. (compoundsemiconductor.net)
They also work on developing new materials within nanowires that do not exist in bulk form. (lu.se)
During the 1990s, nanowires and other low-dimensional materials were predicted to be the solution to making existing thermoelectric materials more efficient, but before our publication, nobody had yet been able to prove that nanowires actually have more favourable properties", says Sofia Fahlvik Svensson. (lu.se)
By use of nanowires, we have taken on the challenge to create high-performance photovoltaics (PV) at low cost, simultaneously being sustainable with concern for the limited abundance of materials on the planet. (lu.se)

The team is also studying how cycling affects nanowires that, like silicon electrodes, expand and contract as lithium ions come and go. (sciencedaily.com)
Instead of blowing up around its middle, it gradually grows along its axis as the lithium ions transport into the nanowire. (ieee.org)

They feel the PMMA coating will increase the number of times a battery can be charged by stabilizing conditions between the nanowires and liquid electrolyte, which tend to break down over time. (sciencedaily.com)

In situ hydrogenation of orthorhombic molybdenum trioxide (α-MoO 3 ) nanowires has been achieved on a large scale by introducing alcohol during the hydrothermal synthesis for electrochemical energy storage supercapacitor devices. (rsc.org)

Measurements of thermal transport along 3C-SiC nanowires with and without a gold coating on the end(s) suggest that thermally excited surface phonon polaritons can be used in nanostructures to substantially enhance thermal conductivity. (nature.com)

Further research has shown that Geobacter nanowires are composed of stacked cytochromes, namely OmcS and OmcZ. (wikipedia.org)
Research persists to date to explore the mechanisms, implications, and potential applications of nanowires and the biological systems they are a part of. (wikipedia.org)
While these potential implications provide a reasonable hypothesis towards the role of the bacterial nanowire in a biological system, more research is needed to fully understand the extent of how cellular species benefit from nanowire use. (wikipedia.org)
Along with colleagues at the National Energy Technology Laboratory (NETL), Alexander Star, associate professor of chemistry in Pitt's Kenneth P. Dietrich School of Arts and Sciences and principal investigator of the research project, developed a self-assembly method that uses scaffolds (a structure used to hold up or support another material) to grow gold nanowires. (nanowerk.com)
In combined theoretical-experimental research, the scientists were able to establish a direct dependence between the size of a template and the resulting structure of the nanowire. (materialstoday.com)
Research on thermoelectric effects in nanowires at the Faculty of Engineering could mean that you won't need to fill the tank quite so often in future. (lu.se)

BCC Fe nanowires is appropriately reflected in the stress-strain behavior and plastic strain at failure. (arxiv.org)

The improvement is based instead on the nanowires not being perfectly uniform and it also works with thicker nanowires, which are simpler to produce. (lu.se)

Ajayan and his team feel they've done that by growing forests of coated nanowires -- millions of them on a fingernail-sized chip -- for scalable microdevices with greater surface area than conventional thin-film batteries. (sciencedaily.com)
Nanowire forests can be used to precisely control the nano- and micro-topography of lipid bilayers over millimeter-sized areas. (lu.se)

The news that superconducting nanowire detectors can detect single photons with a timing precision of just a few picoseconds will benefit applications ranging from sensing to quantum communications. (nature.com)
We have additionally applied it both as a digital logic element in a half-adder circuit, and as a digital amplifier for superconducting nanowire single-photon detectors pulses. (mit.edu)

Picture: 3D schematic of fabricated nanowire GRINSCH UV emitters and I-V curves of the GRINSCH and conventional p-i-n diodes. (semiconductor-today.com)

Openings approximately 400 nm or less produced single nanowires with symmetrically faceted tips. (nist.gov)
Implementing an insect brain computational circuit using III-V nanowire components in a single shared waveguide optical network. (lu.se)

Hisao Yanagi, Nara Institute of Science and Technology (NAIST), Japan, and colleagues have developed a method for fabricating organic nanowires with controlled lengths. (chemistryviews.org)
Their lasing threshold fluence (the optical energy per unit area) was reduced with increasing nanowire lengths, which is in accordance with theoretical analysis considering emission cross-section and loss parameters. (chemistryviews.org)

Organisms3

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20222

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