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Cheap, Better-Performing Lithium-ion Batteries with Nanowires

Apr. 2014- Researchers at the USC Viterbi School of Engineering have improved the performance and capacity of lithium batteries by developing better-performing, cheaper materials for use in anodes and cathodes (negative and positive electrodes, respectively). Lithium-ion batteries are a popular type of rechargeable battery commonly found in portable electronics and electric or hybrid cars. ...

Solution Processing of ITO-Free Solar Cells

Mar. 2014- Organic solar cells (OSCs) are of interest for next-generation photovoltaic applications due to their lower costs and milder fabrication requirements relative to c-Si and thin-film devices. The power conversion efficiency (PCE) of these devices has risen to 11-12% in recent years, which is promising in order to gain market share in this competitive field. Requiring only simple spin- or ...

3M and Cambrios Collaborate to Produce Flexible Silver Nanowire Film for Touch Screens

Dec. 2013- 3M announces the launch of a new touch sensor film, 3M™ Patterned Silver Nanowire Film, that combines the expertise of two leading technology and manufacturing companies to provide the quality, unique attributes, and volume that touch screen manufacturers demand. 3M plans to ramp up its total global touch sensor film manufacturing capacity to more than 600,000 square meters per month in 2014, ...

Artificial Forest for Solar Water-Splitting

May. 2013- Berkeley Lab Researchers Report First Fully Integrated Artificial Photosynthesis NanosystemIn the wake of the sobering news that atmospheric carbon dioxide is now at its highest level in at least three million years, an important advance in the race to develop carbon-neutral renewable energy sources has been achieved. Scientists with the U.S. Department of Energy (DOE)’s Lawrence Berkeley ...

Nanowires Could Pave the Way for More Efficient and Cheaper Solar Cells

Jan. 2013- In the latest issue of Science ("InP Nanowire Array Solar Cells Achieving 13.8% Efficiency by Exceeding the Ray Optics Limit"), researchers from Lund University in Sweden have shown how nanowires could pave the way for more efficient and cheaper solar cells.

Researchers Create Highly Conductive and Elastic Conductors Using Silver Nanowires

Jul. 2012- Researchers from North Carolina State University have developed highly conductive and elastic conductors made from silver nanoscale wires (nanowires). These elastic conductors can be used to develop stretchable electronic devices.Stretchable circuitry would be able to do many things that its rigid counterpart cannot. For example, an electronic “skin” could help robots pick up delicate ...

Lead-Free Nanowire Piezoelectric Nanogenerator: Potential for Ubiquitous Power

Dec. 2011- Scavenging energy from the environment at meaningful power densities remains an elusive and costly target for a range of small-scale applications, such as wireless sensors and autonomous information networks. In addition, prospects for scaling such technologies to provide real energy production from renewable sources could be a driver, but require much more stringent cost and scaled manufacturing ...

Integrated Nanowire Logic Circuitry on Deformable Nonplanar Substrates

Dec. 2011- While a significant amount of recent research and development has focused on flexible electronics and improvements in thin film transistor performance on flexible substrates, less attention has been given to electronics application requiring deformable layouts or extreme, complex surface shapes and curvatures. As flexible electronics technology matures, a growing number of applications require ...

High Speed Water Sterilization Using One-Dimensional Nanostructures

Apr. 2011- Recently, Schoen et. al. investigated the incorporation of silver nanowires (AgNWs) and carbon nanotubes (CNTs) within a matrix of cotton, enabling a membrane with multiscale nanostructured materials to effectively inactivate  bacteria in water. This strategy takes advantage of the chemical and mechanical robustness of cotton as the support, along with the large pore structure between cotton ...

Bulk Metallic Glass Nanowires: A Platform for Electrochemical Applications

Apr. 2011- Carmo et. al. from Yale University recently reported on an approach to synthesize an electrode catalyst support using bulk metallic glass nanowires (BMGs). In this work, a top-down nanomanufacturing method is described to fabricate the Pt-BMG nanowire catalyst for electrochemical applications. The facile approach is scalable to large areas and further offers atomic level control over material ...

Fabrication of Nanoscale Plasmonic Sensing Structures Over Large Areas

Mar. 2011- Plasmonic sensors provide a means of detecting chemical and biological species through the observation of spectral features by measurement techniques such as surface enhanced Raman spectroscopy (SERS) or surface plasmon resonance (SPR). In order to develop a full-scale plasmonic sensor, periodic nanostructures must be replicated over large-area surfaces, such as six-inch silicon wafers. By ...

New Process Successfully Grows Uniform 3D Nanowire Networks

Feb. 2011- Nanotechnology-enabled fabrication of solar cells with conventional nanoparticle-based thin-films has a drawback in that the diffusion length of the charge carriers is too short to get charge separation, although the nanoparticles themselves provide copious surface areas; whereas photovoltaic devices fabricated by aligned or partially aligned nanowire array configurations have exhibited enhanced ...

Enhanced Efficiency Dye-Sensitized Solar Cells Utilizing Solution-Based Synthesis of Hierarchical Titanium Dioxide Nanotube Arrays

Feb. 2011- Recently, Zhuge et. al. reported on the use of ZnO nanowires as templates to form TiO2 nanotubes via a solution-based process wherein the ZnO nanowires are conformally coated with TiO2 and then selectively etched through a separate chemistry. With nanowires as a template, the authors synthesized a hierarchical double-shell architecture for the TiO2 nanotube in order to provide a highly ...

Hybrid Silicon/Carbon Nanotube Heterostructures for Reversible High-Capacity Lithium-Ion Anodes

Jan. 2011- A facile approach to synthesize hybrid Si-CNT nanocomposites suitable for Li+ battery anodes has been reported. While cycling stability remains an issue, the materials still show significant improvements over present anode materials systems in terms of reversible capacity and rate limitations.

Bulk Heterojunction Photovoltaics Utilizing Semiconducting Nanowires and Conjugated Polymers

Jan. 2011- Organic photovoltaics represent an attractive approach for the production of cost competitive solar cells, as they incorporate solution-based processes that are compatible with large-area, high-throughput manufacturing infrastructure. Enhanced device performance can be achieved incorporating organic/inorganic blends to form hybrid BHJ solar cells with improved electron mobility, dielectric ...

Direct-growth Fabrication for Paper-based Electronics

Oct. 2010- In the not too distant future, we will be surrounded by miniature and often invisible electronic devices that will be printed on anything you can imagine – paper, fabric, leather, even human tissue (see "Nanotechnology electronics at the tip of your gloved finger"). This in turn enables applications like smart cards on paper; intelligent sensors and electronics on doctors' ...

Integrated Piezoelectric Nanowire Arrays: A Path for Energy Harvested Power

Jul. 2010- Present piezoelectric materials and devices show promise for niche power-harvesting applications, but their improved performance is necessary to achieve size, weight, and cost objectives in order to compete with existing energy sources. Xu et. al. report a facile approach to both vertical and laterally-oriented piezoelectric nanowire arrays for integrated piezoelectric devices.

Selective Synthesis of Horizontal Nanochannel and Nanowire Structures

May. 2010- Xiang and colleagues demonstrate a versatile approach to fabricate in-plane multi-contact nanowire structures on a single silicon chip. This approach may offer a versatile means to fabricate complex networks of nanowire materials, with the possibility of integration of field effect devices and sensors.

Directed Self Assembly Brief: Deterministic Field Assisted Assembly

Jan. 2010- This article represents the first in a series of briefs on the directed self assembly of nanostructures. Directed assembly can be expressed in the guided synthetic, stereochemical, and 3D configurational control of complex molecules, such as the rhibosome-assisted assembly of proteins. For these types of reactions, the final placement of these complex materials may not be controlled. ...

Nanostructured Sensors for Homeland Security Applications

Nov. 2009- An important beneficiary of emerging nanomanufacturing techniques has been in the area of detection and sensing for homeland security and defense applications. Examples of sensor technologies directly benefiting from nanostructured materials and processes include ultra-microelectrode arrays, which effectively increase the surface area of an electrochemical detection electrode by incorporation of ...

Putting a Strain on Nanowires Could Yield Colossal Results

Sep. 2009- In finally answering an elusive scientific question, researchers with the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) have shown that the selective placement of strain can alter the electronic phase and its spatial arrangement in correlated electron materials. This unique class of materials is commanding much attention now because they can display ...

Low-temperature Growth of Patterned ZnO Nanowire Arrays

Jan. 2009-  Xu, et al. demonstrate the low-temperature (<100 °C) growth of size-controlled, patterned ZnO nanowire arrays onto multiple types of substrates. 

CHM Researchers Featured on Small

Nov. 2008- National Nanomanufacturing Network: The organic nanowires featured on this month's cover of Small are the work of researchers at the University of Massachusetts Amherst's Center for Hierarchical Manufacturing.

Development of a Metal Containing Glass Hollow Fiber Drawing Technique For The Production of Extremely Long Micro/Nanowires

Sep. 2008- Zhang et al. report a novel fiber drawing method for forming very long metallic wires with micron to nanometer sized diameters.  This method is amenable to scale up for producing vertically aligned arrays of these micro/nanowires in large quantities.   

Green Synthesis of Ag and Pd Nanospheres, Nanowires, and Nanorods Using Vitamin B2: Catalytic Polymerization of Aniline and Pyrrole

Sep. 2008- Nadagouda et al. reported a simple, green synthetic approach of Ag and Pd nanospheres, nanowires, and nanorods using Vitamin B2 and investigated the catalytic activities of these nanomaterials. 

Large-scale Fabrication of Nanowire Devices

Sep. 2008- Semiconductor nanowires (NW) are expected to play a critical role in future electronic and optoelectronic devices as an approach to sustain the scaling trends in electronics and to provide crucial performance enhancements, such as adding photonic functionalities to silicon platforms. 

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A 14-ps Full Width at Half Maximum High-Speed Photoconductor Fabricated with Intersecting InP Nanowires on an Amorphous Surface

We demonstrate a high-speed polarization-insensitive photoconductor based on intersecting InP nanowires synthesized between a pair of hydrogenated silicon electrodes deposited on amorphous SiO2 surfaces prepared on silicon substrates. A 14-ps full width at half maximum de-embedded impulse response is measured, which is the fastest reported response for a photodetector fabricated using nanowires. ...

A hybrid plasmonic waveguide for subwavelength confinement and long-range propagation

The emerging field of nanophotonics1 addresses the critical challenge of manipulating light on scales much smaller than the wavelength. However, very few feasible practical approaches exist at present. Surface plasmon polaritons2, 3 are among the most promising candidates for subwavelength optical confinement3, 4, 5, 6, 7, 8, 9, 10. However, studies of long-range surface plasmon polaritons have ...

Advanced Manufacturing Partnership: Where Does Nanomanufacturing Fit, and Where Should Investments Be Made?

The announcement of the Advanced Manufacturing Partnership (AMP) by the White House last June, followed by regional workshops to identify technology approaches for U.S. government investment to create high-quality manufacturing jobs and enhance the global competitiveness, demonstrates the Obama administration's commitment to revitalizing manufacturing in the US. The government/academic/industry ...

Aligned nanowires and nanodots by directed block copolymer assembly

The directed self-assembly of block copolymers (BCPs) is a promising route to generate highly ordered arrays of sub-10 nm features. Ultradense arrays of a monolayer of spherical microdomains or cylindrical microdomains oriented parallel to the surface have been produced where the lateral ordering is guided by surface patterning and the lattice defined by the patterning can be commensurate or ...

All-angle negative refraction and imaging in a bulk medium made of metallic nanowires in the visible region

We theoretically demonstrated that all-angle negative refraction and imaging can be implemented by metallic nanowires embedded in a dielectric matrix. When the separation between the nanowires is much smaller than the incident wavelength, these structures can be characterized as indefinite media, whose effective permittivities perpendicular and parallel to the wires are opposite in signs. Under ...

CMOS Control Enabled Single-Type FET NASIC

A new hybrid CMOS-nanoscale circuit style has been developed that uses only one type of Field Effect Transistor (FET) in the logic portions of a design. This is enabled by CMOS providing control signals that coordinate the operation of the logic implemented in the nanoscale. In this paper, the new circuit style is explored, examples from a microprocessor design are shown, performance, ...

Congressional Subcommittee Explores Impact and Economic Benefits of National Nanotechnology Initiative

This month, the House Science, Space, and Technology Subcommittee on Research and Science Education held a hearing, entitled "Nanotechnology: Oversight of the National Nanotechnology Initiative and Priorities for the Future", to assess the impact of the federal government's investment in the National Nanotechnology Initiative (NNI). In doing so the subcommittee heard key testimony from industry ...

Fabrication and Characterization of a Nanowire/Polymer-Based Nanocomposite for a Prototype Thermoelectric Device

This paper discusses the design, fabrication and testing of a novel thermoelectric device comprised of arrays of silicon nanowires embedded in a polymer matrix. By exploiting the low-thermal conductivity of the composite and presumably high-power factor of the nanowires, a thermoelectric figure of merit, higher than the corresponding bulk value, should result. Arrays were first synthesized using ...

Heterogeneous Two-Level Logic and Its Density and Fault Tolerance Implications in Nanoscale Fabrics

Most proposed nanoscale computing architectures are based on a certain type of two-level logic family, e.g., AND-OR, NOR-NOR, NAND-NAND, etc. In this paper, a new fabric architecture that combines different logic families in the same nanofabric is proposed for higher density and better defect tolerance. To achieve this, we apply very minor modifications on the way of controlling nanogrids, while ...

Heterojunction Photovoltaics Using GaAs Nanowires and Conjugated Polymers

We demonstrate an organic/inorganic solar cell architecture based on a blend of poly(3-hexylthiophene) (P3HT) and narrow bandgap GaAs nanowires. The measured increase of device photocurrent with increased nanowire loading is correlated with structural ordering within the active layer that enhances charge transport. Coating the GaAs nanowires with TiOx shells passivates nanowire surface states and ...

Induction of Cell Death by Magnetic Actuation of Nickel Nanowires Internalized by Fibroblasts

Magnetic nanomaterials with multimodal functionalities have emerged as a versatile platform for biomedical applications that range from basic cellular interrogation to clinical nanomedicine. In this work, we have prepared electrodeposited ferromagnetic nickel nanowires for efficient internalization into 3T3 fibroblasts. Agitation of the nanowires by a low external field induced cell death, as ...

Multiple Nanowire Species Synthesized on a Single Chip by Selectively Addressable Horizontal Nanochannels

The synthesis of horizontal porous anodic alumina (PAA) structures with individually addressable channel systems is demonstrated. This was achieved by developing a multicontact design of aluminum finger structures (two to five contacts) on silicon wafers. These aluminum contacts were electrically isolated from each other, allowing the individual anodization of each contact at different ...

NIST TIP Invests in Nanomanufacturing

The U.S. Commerce Departments National Institute of Standards and Technology (NIST) announced in December 2009 over $31 million in funding through its Technology Innovation Program (TIP) for nine new cost-sharing projects that will support innovative, high-risk research in novel nanomaterials or nanomanufacturing technologies that address critical national needs. Also: Metal-Catalyst-Free CVD ...

Optical Negative Refraction in Bulk Metamaterials of Nanowires

Negative refraction in metamaterials has generated great excitement in the scientific community. Although negative refraction has been realized in microwave and infrared by using metamaterials and by using two-dimensional waveguide structures, creation of a bulk metamaterial showing negative refraction at visible frequency has not been successful, mainly because of the significant resonance ...

Patterned Growth of Vertically Aligned ZnO Nanowire Arrays on Inorganic Substrates at Low Temperature without Catalyst

We report an approach for growing aligned ZnO nanowire arrays with a high degree control over size, orientation, dimensionality, uniformity, and possibly shape. Our method combines e-beam lithography and a low temperature hydrothermal method to achieve patterned and aligned growth of ZnO NWs at

Reconfigurable Nanowire Fabric for Computation: Simulations and Experimental Prototyping

The Reconfigurable Nanowire Fabric is targeted as a scalable alternative to CMOS FPGAs. Logic and memory functionalities can be mapped on to programmable nanowire arrays with reconfigurable cross-nanowire field effect transistor (xnwFETs) crosspoints. Design choices across device, circuit and architecture level are geared towards reducing manufacturing requirements junctionless xnwFET devices ...

Scalable Fabrication of Nanowire Photonic and Electronic Circuits Using Spin-on Glass

We present a method which can be used for the mass-fabrication of nanowire photonic and electronic devices based on spin-on glass technology and on the photolithographic definition of independent electrical contacts to the top and the bottom of a nanowire. This method allows for the fabrication of nanowire devices in a reliable, fast, and low cost way, and it can be applied to nanowires with ...

Tunable metallic-like conductivity in microbial nanowire networks

Electronic nanostructures made from natural amino acids are attractive because of their relatively low cost, facile processing and absence of toxicity(1-3). However, most materials derived from natural amino acids are electronically insulating(1-6). Here, we report metallic-like conductivity in films of the bacterium Geobacter sulfurreducens(7) and also in pilin nanofilaments (known as microbial ...

Wafer-Scale Assembly of Highly Ordered Semiconductor Nanowire Arrays by Contact Printing

Controlled and uniform assembly of bottom-up nanowire (NW) materials with high scalability presents one of the significant bottleneck challenges facing the integration of nanowires for electronic applications. Here, we demonstrate wafer-scale assembly of highly ordered, dense, and regular arrays of NWs with high uniformity and reproducibility through a simple contact printing process. The ...

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Amprius, Inc.

Amprius, Inc.

Amprius’ immediate goals include commercialization of silicon-based anode materials with 10 times the capacity of current carbon anodes, offering an increase in cell capacity of roughly 40%. Amprius, Inc., is working to develop a unique, high-throughput, continuous manufacturing process for producing a novel, nanostructured silicon-based anode material for lithium batteries. Higher energy ...

Cambrios Technology Corporation

Cambrios Technology Corporation

Cambrios is currently focused on the development of electronic materials for the display industry.

Eikos, Inc.

Eikos, Inc.

Eikos, Inc. is a developer and manufacturer of highly transparent carbon nanotube inks for conductive coatings and circuits for use in solar cells, flat panel displays, OLED lighting, smart windows and other established markets. Eikos' patented invisicon transparent conductors ('nanowires') will enable high volume, low cost production of a thinner, more flexible and more durable conductive ...

nanoComposix, Inc.

nanoComposix, Inc.

nanoComposix specializes in the fabrication, characterization, and integration of nanomaterials into products and systems. Our mission is to enable our customers to maximize the potential benefits of nanotechnology through the use of precisely engineered, highly characterized nanomaterials. Our multi-disciplinary technical teams provide method and protocol development, rapid prototyping, ...

Nanomaterials, Nanomanufacturing, and Nanodevice (n3) Laboratory

Nanomaterials, Nanomanufacturing, and Nanodevice (n3) Laboratory

Michigan State University
We are interested in the areas of micro and nano-manufacturing, functional nanomaterials, and device design and fabrication for micro/nanosystems. Individual nanomaterials exhibit superior electronic, mechanical, and optical properties compared to their bulk counterpart, but when assembled into a device or system, their salient features are often compromised due to ...

QuNano AB

QuNano AB

Lund University
Founded in Sweden in 2005, QuNano works to commercialize cutting-edge, proprietary semiconductor and non-semiconductor nanowire technology in diverse fields such as solid state electronics, solid state illumination, highly efficient photovoltaics, and the life sciences. QuNano enjoys a uniquely close cooperation with scientists at Lund University’s Nanometer Structure ...

Seashell Technology, LLC

Seashell Technology, LLC

Seashell Technology LLC is a privately held San Diego-based nanotechnology company. Seashell Technology was formed by President and co-founder Dr. Sheldon Schultz who has had over 20 years experience working and developing nanocomposite materials and novel metamaterials. Since its inception in 1996 Seashell Technology has developed plasmon resonant particles for use as optically observable ...

Sol Voltaics AB

Sol Voltaics AB

Sol Voltaics AB was founded by world renowned nanotechnology expert Lars Samuelson in 2008 in Lund Sweden with the focus to improve the efficiency of energy capture, generation and storage using miniscule amounts of novel nanomaterials. Sol Voltaics pioneering nanowire technology has been developed at the Nanometer Structure Consortium where we enjoy a uniquely close cooperation with ...

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Nanowires

Nanowires

~400nm nanowires created through electrochemical deposition.