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Atomic-Scale Metrology is Key in Fabricating Graphene Devices

Jan. 2011- Graphene is a very interesting nanomaterial with potential for applications in many different fields including nanoelectronics. However, the properties of graphene can vary broadly and depend sensitively on its integration in device structures and the details of its interaction with other materials, such as underlying substrates or gate dielectrics. Unlike other semiconductor electronic devices, ...

Precision Coatings Stabilize Metal Oxide Composites for Lithium Ion Battery Electrodes

Jan. 2011- Increasing the surface-to-volume ratio of the Lithium ion Battery electrode materials both increases the electrode contact area and reduces the Lithium ion (Li+) insertion distance, therefore modifying bulk or microscale metal oxide composites to nanometer-sized particles improves both the power and the capacity of the electrode material. The disadvantage of increased surface area for high ...

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 ...

Quantum Dots Precisely Placed by Controlled Flow

Aug. 2010- A key challenge for solution-synthesized nanostructures is to isolate a single particle with desired properties from solution and place it in the active region of a device structure. Ropp et al. present an alternative to optical tweezers and dielectrophoretic devices that uses controlled, electro-osmotic flow (EOF) to achieve nanometer precision placement of single quantum dots. The authors ...

Roller Painting Plastic Solar Cells

Aug. 2010- Solar cells that convert sunlight to electric power traditionally have been dominated by solid state junction devices, often made of silicon wafers. Thanks to nanotechnology, this silicon-based production technology has been challenged by the development of a new generation of solar cells based on thin film materials, nanocrystalline materials and conducting polymeric films. These offer the ...

Understanding the Resistivity-Transparency Tradeoffs for Carbon Nanotube Electrodes on Flexible Substrates

Jul. 2010- A key remaining challenge for the preparation of CNT-based transparent electrodes suitable for flexible substrates is to optimize the sheet resistance and transparency of CNT films for specific implementations. Scardacci et. al. investigate the transmittance and sheet resistance tradeoff for CNT films spray-coated onto polyethylene terephtalate (PET) substrates and report a scalable method for ...

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.

New England Nano Event Highlights Emerging Technologies and Applications

Jul. 2010- The New England Nanomanufacturing Summit 2010 (NENS 2010), held at the University of Massachusetts in Lowell, MA June 22-24, showcased groundbreaking research in nanotechnology with a focus towards manufacturing and commercialization topics. The event was organized by the National Nanomanufacturing Network, the NSF Center for Hierarchical Manufacturing (CHM) at the University of Massachusetts ...

Direct-Write Process Brings Nanotechnology Fabrication Closer to Mass Production

Jun. 2010- The technology for nanomaterial-based device fabrication is still at its infancy, despite the surge in research publications over the past decade. As a matter of fact, the controllable fabrication of complex, three-dimensional nanoscale structures remains a difficult challenge; it will still take some time before a commercial product can be realized. Although researchers are experimenting with a ...

SouthWest NanoTechnologies Presenting Carbon Nanotube Ink Research at NSTI June 21 - 24

Jun. 2010- SouthWest NanoTechnologies, Inc. (SWeNT), the leader in high quality, single-wall and specialty multi-wall carbon nanotubes (CNT), will be exhibiting and presenting a paper at the Nano Science and Technology Institute (NSTI) Nanotech Conference and Expo 2010 June 21-24,at the Anaheim Convention Center in Anaheim, CA. At SWeNT’s exhibit (booth # 751), its innovative new ink products, ...

Electrostatic Interactions for Bottom Up Assembly of Two-Dimensional Nanostructures

Jun. 2010- Stepanow et. al. reported on the fabrication of ordered 2D nanostructures in a solvent-free, high vacuum environment. In this work the authors selected several carboxylic acid groups and alkali metal atoms as the building blocks for supramolecular assembly. This approach potentially represents a facile, versatile method for the fabrication of highly ordered 2D nanostructures via a bottom up ...

Large Area Synthesis of Graphene Sheets by Metal-Catalyzed Crystallization

May. 2010- Zheng and colleagues describe a method to synthesize large-area, transferrable graphene films by metal-catalyzed crystallization of amorphous carbon (a-C) through thermal annealing. 

NIST 2010 TIP Competition

May. 2010- Through July 15th, NIST is accepting proposals for the 2010 Technology Innovation Program. The new TIP competition offers cost-shared funding for innovative research on "Manufacturing and Biomanufacturing: Materials Advances and Critical Processes."

High Performance Rechargeable Batteries: Impacts of Nanostructured Materials Approaches

May. 2010- Yang et. al. describe a unique nanostructured rechargeable battery, wherein a lithium sulfide (Li2S)-mesoporous carbon cathode and silicon nanowire anode are combined to form a full cell. By incorporating the lithiated counterpart, Li2S, in the cathode, issues associated with elemental lithium anodes can be avoided while retaining the high capacity and performance offered by the silicon ...

Hierarchical Bottom-up Method for the Synthesis of High Performance Li-Ion Anodes

Apr. 2010- Magasinski and colleagues report a potentially versatile method for synthesizing complex, high surface area composite structures for Lithium-Ion battery anodes incorporating bottom-up and top-down methods.

DNA Origami Used to Assemble Nanoplasmonic Structure

Apr. 2010- Ding et al. report on the use of deoxyribonucleic acid (DNA) origami as a scaffold for the assembly of gold nanoparticles into a carefully organized structure to create, ideally, a device with a strongly enhanced plasmonic resonance.

Call for Papers: Quality, Sensing and Prognostics Issues in Nanomanufacturing

Apr. 2010- The recent years have seen the emergence of new technologies for processing materials and creating artifacts with features having at least one dimension in the nanometer range. These technologies are collectively termed nanomanufacturing processes. These novel technologies offer opportunities for developing material structures and products with unprecedented combinations of physical, chemical ...

Applying Traditional Mechanical Machining to 3D Nanotechnology Fabrication

Apr. 2010- It has proven difficult to directly manufacture functional nanostructures and nanodevices with predetermined designs using bottom-up processes alone. So far, developing top-down machining techniques capable of fabricating structural/functional nanostructures and nanodevices appears to be indispensable, but mechanical machining tools with nanometer precision are still lacking.

Nanopatterned Polymer Photovoltaic Heterojunction Using a Double Imprint Process

Mar. 2010- Polymer bulk heterojunction materials offer a potentially low-cost, facile approach for the fabrication of efficient photovoltaic (PV) devices. He investigate the use of nanoimprint lithography (NIL) as a method to form patterned polymer blends generating a three-dimensional interpenetrating hierarchy of electron donor and acceptor materials.

In Brief: Molecular Transfer Printing Using Block Copolymers

Mar. 2010- An excerpt from recently published work by Paul F. Nealey and colleagues from the University of Wisconsin describes a soft lithographic technique that replicates chemical patterns at the nanoscale.This image (left) is a SEM image of an ink patterned that has been transferred onto a substrate.

Principles of and Recent Advances in Laser Micro/Nano Manufacturing Processes

Mar. 2010- An NSF-sponsored Summer Institute on Laser Micro/Nano Manufacturing Processes will take place from June 1 - 4, 2010, in Evanston, IL. Deadline for Fellowship applications is March 31; deadline for registration is April 1.

Polymeric Nanomaterials for High Efficiency Energy Harvesting and Conversion

Mar. 2010- Incorporating the advantages of high conversion efficiency, scalable manufacturing, and facile integration strategies, PVDF nanofiber power generators provide the basis for self-powered textiles, embedded power sources for nanodevices and wireless sensors, and large area fabrics for portable electronics implementations.

Two Approaches to Large-Area Graphene Synthesis For Device Quality Materials

Feb. 2010- Li and Hofrichter offer two approaches for large-area synthesis of graphene on substrates with potential for device integration. 

Thermal Dip Pen Nanolithography for Direct Writing of Polymer-NanoParticle Composites

Feb. 2010- Lee et. al. demonstrated a maskless, additive approach for direct writing of a range of NP–polymer compositions using thermal dip-pen nanolithography (tDPN). This technique represents a facile strategy for deposition of a wide range of NP composite materials in order to create dense nanopatterned films.

Implications of Supramolecular Templating of Thick Mesoporous Titania Films for Dye-Sensitized Solar Cells

Feb. 2010- Zhang, reported on an approach to synthesize thick mesoporous inorganic oxide films in order to harvest more  incident solar radiation, thereby enhancing the efficiency of the solar cell.

Nanostructured Solar Cells Have Improved Charge Collection and Self Cleaning Properties

Feb. 2010- Zhu, et. al., report on the use of “nanodome” solar cells to simultaneously improve optical absorption and enhance surface cleanliness. The resulting structures have power conversion efficiencies of 5.9%.

NIST Technology Innovation Program (TIP) Advances Public-Private Partnerships with Strong Investment in Nanomanufacturing and Nanomaterials

Jan. 2010- The U.S. Commerce Department’s 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. TIP is focused on ...

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. ...

Nanotechnology Prevalent Among 2009 R&D 100 Competition Winners

Jan. 2010- Nanotechnology was a common theme contributing to many of last year’s R&D 100 competition winners. The competition, sponsored by R&D Magazine, considers technologies transitioning from research laboratories to commercialization, and selects winning submissions based on several figures of merit including intellectual innovation, market application, and technical maturity. This years ...

Center for High-rate Nanomanufacturing Industry Showcase Event

Jan. 2010- The NSF Nanoscale Science and Engineering Center for High-rate Nanomanufacturing (CHN) has announced their annual Industry Day Showcase to take place on February 2, 2010. The event will showcase the research of the Center, including Northeastern University, the University of New Hampshire, and the University of Massachusetts Lowell.

Instrumentation, Metrology, and Standards for Nanomanufacturing IV

Jan. 2010- Instrumentation, Metrology, and Standards for Nanomanufacturing IV, is slated to become the leading forum for the exchange of foundational information and discussion of instrumentation, metrology and standards which are needed components of nanomanufacturing. This conference is part of the NanoEngineering program track of SPIE's NanoScience + Engineering symposium, which will be held from ...

SPIE Nanoscience + Engineering Symposium Abstracts Deadline Approaching

Jan. 2010- January 18th is the deadline for abstracts for the SPIE Nanoscience + Engineering Symposium, part of SPIE Optics + Photonics 2010.

Controlled Deposition of Microparticle Arrays for LEDs

Dec. 2009- Kumnorkaew and Gilchrist report on the use of the “coffee stain” effect to simultaneously deposit controlled arrays of  microparticles embedded in nanoparticles.  These structures can dramatically improve the output coupling of III-Nitride LEDs.

Call for Participation: NanoFab 2010

Dec. 2009- The 2010 International Conference on Nanofabrication Technologies, Devices, and Applications has issued a call for participation with a deadline for abstracts on January 21st, 2010.

$6.5 Million NIST TIP Award For Low-Cost, High-Quality Metallic and Semiconducting SWCNT Inks

Dec. 2009- Brewer Science, ® Inc., and SouthWest NanoTechnologies, Inc. (SWeNT), announced that they have received a $6.5M award under NIST’s Technology Innovation Program (TIP). The funding is in support of research and development programs that focus upon methodologies to attain the cost-effective production of high-purity, high-quality metallic and semiconducting carbon nanotube (CNT) inks. ...

Herr and Caprio Round Out Editorial Team

Dec. 2009- The National Nanomanufacturing Network is pleased to welcome two additional Contributing Editors who will round out the NNN's Editorial Team for 2010. Daniel Herr and Vincent Caprio will bring their expertise to bear on Advanced Processes + Tools and Business + Entrepreneurship focus areas for InterNano.

Carbon Nanotube Thin Film TransistorsóReady for Prime Time?

Dec. 2009- Thin film transistors (TFT) have gained interest as switching devices for large area displays and, more recently, for a range of large area flexible substrate applications. While much TFT development has focused on amorphous silicon, the expensive vacuum processing and low carrier mobility associated with these systems have prompted researchers to explore alternative materials. Organic TFTs, for ...

Thermochemical Nanolithography Now Allows Multiple Chemicals on a Chip

Dec. 2009- Scientists at Georgia Tech have developed a nanolithographic technique that can produce high-resolution patterns of at least three different chemicals on a single chip at writing speeds of up to one millimeter per second.  The chemical nanopatterns can be tailor-designed with any desired shape and have been shown to be sufficiently stable so that they can be stored for weeks and then used ...

New Imaging Technique Allows Quick Evaluation of Graphene Sheet

Dec. 2009- Graphene based sheets such as pristine graphene, graphene oxide, or reduced graphene oxide – also known as chemically modified graphene – are basically single atomic layers of carbon network. They are the world's thinnest materials. A general visualization method that allows quick observation of these sheets would be highly desirable as it can greatly facilitate sample evaluation ...

Nanomaterial Enabled Conductive Paper: A New Paradigm for Flexible Electronics and Energy Storage

Dec. 2009- While nanostructured materials combined with emerging nanomanufacturing processes are advancing the next generation of displays, e-paper, renewable energy, and energy storage devices, the predominant technologies have employed scaled processes on flexible substrates facilitated by roll-to-roll platforms. Recently, a group of researchers at Stanford University have taken this concept one step ...

Integration of CdSe Nanostructures on Graphene Basal Plane by Electrochemical Deposition

Dec. 2009- Electrochemical deposition techniques offer an alternative method for grafting nanostructured materials on a graphene surface. Kim et. al. report an innovative approach to directly integrate CdSe quantum confined nanostructures with graphene basal planes.

Organic Electrophoretic Inks Utilizing Encapsulated-Dye Nanoparticles

Nov. 2009- Oh and collegaues report a straightforward synthesis route for manufacturing colored electrophoretic inks for emerging flexible displays and E-paper applications.

NNN Welcomes Hyung Gyu Park, J. Alexander Liddle to Editorial Team

Nov. 2009- The National Nanomanufacturing Network is pleased to add two new Contributing Editors to the  InterNano editorial team. Hyung Gyu Park and J. Alexander Liddle will bring their expertise to bear on our Fundamental Science and Advanced Processes + Tools categories, respectively.

Quality Control of Everyday Products with AFM Creates Competitive Advantages

Nov. 2009- Many of today’s high-tech products rely on nano-level functional structures, and in products such as mobile phones, integrated circuits and glasses they have already become commonplace. But with increasing demands on products and their quality, tiny structures and the ability to evaluate them are also becoming decisive factors for the production of everyday products.

University of Massachusetts Amherst Experts Review a Probe-Based Approach to Data Storage for Nature Nanotechnology

Nov. 2009- The November issue of Nature Nanotechnology includes a news feature titled “Polymers: Performance Under Pressure” written by two University of Massachusetts Amherst researchers, Thomas P. Russell and Dong Hyun Lee.

Pressure Induced Microphase Separation of Block Copolymers for Ultrahigh-Density Data Storage

Oct. 2009- Jo et. al. introduce a novel concept for the formation of nanopatterns on a polymer film at room temperature.

Dynamic Patterning of Nanostructures by Combined Electrokinetic Forces

Oct. 2009- NanoPen represents a versatile approach to patterning a range of nanostructured materials, including nanorods and nanotubes.

Rice University-born Company to Ease Solar Panel Manufacturing

Sep. 2009- Natcore Technology, a New Jersey-based company which is using Rice-born research to revolutionize the manufacture of solar panels, signed a deal with the university last week to provide $100,000 to help the lab of Rice professor Andrew Barron advance the technology.

Algal Cellulose Key to Polymer Battery

Sep. 2009- Researchers from Uppsala University have created a cellulose-polypyrrole composite electrode material with the highest reported charge rate and capacity for nonmetal batteries.

New Technique for Easy CNT Integration with Semiconductor Manufacturing Processes

Sep. 2009- A simple enough manufacturing process could enable carbon nanotubes to replace the vertical wires in chips, permitting denser packing of circuits.

Innovalight Achieves Record Efficiency in Silicon Ink Solar Cell

Sep. 2009- Innovalight, Inc., a privately-held firm providing printed silicon ink solar cell technology, today announced that the company has demonstrated a record 18 percent conversion efficiency with silicon-ink processed solar cells. The industry standard size solar cell results were independently certified by two of the world’s recognized solar cell testing centers, the U.S. Department of ...

Turning Plastic Waste into a Feedstock for Making Nanomaterials

Sep. 2009- There is no denying the fact that plastic wastes have caused serious environmental problems – and continue to do so. Everyday plastic products, for instance water bottles or plastic bags from supermarkets, are so durable that they will either not rot at all or have long biodegradation periods of 50 years and more ("Biodegradability of degradable plastic waste").

Molecular Imprints Enables Low-Cost Patterned Media Manufacturing

Sep. 2009- Molecular Imprints, Inc., the market and technology leader for nanopatterning systems and solutions, today introduced the Perfecta(TM) TR1100 template replication system for patterned media applications. Leveraging the company's Jet and Flash(TM) Imprint Lithography (J-FIL(TM)) technology, the Perfecta TR1100 enables the mass-replication of master imprint templates with extremely high ...

Nanostructured Cathodes for Improved Energy Storage in Rechargeable Batteries

Aug. 2009- Ji et. al. investigate the use of nanostructured sulphur/mesoporous carbon as a cathode material to overcome the challenges of Lithium-Sulfur cell technology, suggesting a path to the realization of high-capacity, long-cycle-life rechargeable batteries.

Subdiffraction-limited Imaging and Lithography Using Flat HyperLens Designs

Aug. 2009- Xiong et. al. report a feasible design to achieve subdiffraction-limited patterns generated from a diffraction-limited mask using a hyperlens with flat input and output surfaces. This approach has demonstrated utility for generating arbitrary subdiffraction-limited pattern features.

Nanopillars Promise Cost-Effective Photovoltaics

Jul. 2009- National Nanomanufacturing Network: Researchers at the Lawrence Berkeley National Laboratory and the University of California Berkeley report advances in the fabrication of cost-effective photovoltaics based on bottom-up nanostructured materials.

Self-Assembled Polymer Templates for Device Applications: High-Rate and Low-Cost for Roll-to-Roll Processing

Jul. 2009- NSF Center for Hierarchical Manufacturing, University of Massachusetts AmherstThe rapid generation of highly-ordered arrays of nanoscopic elements with periodicities of <30 nm render the self-assembly of block copolymers (BCPs) ideal scaffolds and templates for nanofabrication. However, several crucial limitations to enable a broad-based adaptation of BCPs in nanomanufacturing must be ...

Progress Towards High-Throughput Continuous Nanoimprinting

Jul. 2009- Progress towards scaled, large-area NIL for high-throughput roll-to-roll and roll-to-plate processes has been demonstrated, representing a significant step towards integration of emerging nanomanufacturing techniques with high throughput production infrastructure.

Aerosol Synthesis of Carbon Nanotube Networks for Thin Film Transistors

Jul. 2009- Zavodchikova, et. al., report an alternative technique for the fabrication of CNT networks which provides several benefits, including the use of lower heat tolerant substrates, the elimination of potential contaminants from the CNT suspension medium, and the use of standard photolithography and liftoff processes enabling high precision patterning of CNTs for TFT channels. Initial results of their ...

Helium Ion Microscope for Precision Lithography

Jun. 2009- National Nanomanufacturing Network: Researchers at Harvard and MIT report a new, non-contact method for etching graphene devices with a helium ion beam microscope.

Dip Pen Nanolithography Webinar: Recap and Links

Apr. 2009- National Nanomanufacturing Network: The Institute of Physics (IOP) and NanoInk, Inc. co-hosted webinar on Dip Pen Nanolithography presented the function and applications of this patented lithographic technique.

Direct Writing of Ordered Nanostructures with Laser Interference Lithography

Mar. 2009- National Nanomanufacturing Network: An international team of researchers demonstrates a simplified method of laser interference lithography for ordered surface nanostructures <5nm.

NSF Grantee to Work on Computational Tools for Device Design and Simulation

Feb. 2009- National Nanomanufacturing Network: Eric Polizzi, Assistant Professor of Electrical and Computer Engineering at the University of Massachusetts Amherst, recently received a National Science Foundation CAREER grant to enhance the role of computational tools and high speed computing in the design and simulation of nanotechnology-based devices and structures. 

Novel Nanostructured Microbattery Fabrication Technique

Sep. 2008- Massachusetts Institute of Technology: Researchers have developed a novel technique to create nanostructured microbattery anodes.

A New Spring for Carbon Nanotubes

Sep. 2008- Clemson University and the University of California San Diego: A team of researchers from Clemson University and the University of California has developed a novel one-step process for creating coiled carbon nanotubes and nanowires.

Novel nanopositioning device with increased degrees of freedom

Sep. 2008- Purdue University: A novel nanopositioning device with deflections in two directions has been designed and simulated by Professor Jason Clark of Purdue University. 

Graphene Transistor 10nm wide

Apr. 2008- Manchester Center for Mesoscience and Nanotechnology: UK Researchers Andre Geim and Kostya Novoselov have created a graphene transistor  10 nm in size.  

UIUC Team Makes Femtogram-level Chemical Measurements

Mar. 2008-  Center for Nanoscale Chemical-Electrical-Mechanical Manufacturing Systems: Researchers at the University of Illinois Urbana-Champaign have demonstrated a new technique for simultaneous structural and chemical characterization of samples at the femtogram level. Their technique combines atomic force microscopy with Raman or Fourier transform infrared spectroscopy. Their work, funded by the ...

Nano-CEMMS Demonstrates Solid-state Electrochemical Nanoimprinting of Copper

Feb. 2008-  Center for Nanoscale Chemical Electrical Mechanical Manufacturing Systems: Researchers at the University of Illinois Urbana-Champaign use a novel dry-etching process to achieve a resolution of 80nm and an etch rate of 5 Å/s. This direct technique for nanopatterning metals has great potential for nanoscale device fabrication. Schultz PL, et al. "Solid-state electrochemical ...

Nano-CEMMS Team Improves e-Jet Printing Process

Oct. 2007-  Center for Nanoscale Chemical Electrical Mechanical Manufacturing Systems: Researchers at the University of Illinois Urbana-Champaign have refined an electrohydrodynamic jet (e-jet) printing process that can create patterns in the submicron range. Using a gold-coated microcapillary nozzle (diameter 300 nm), the team was able to produce lines with widths as narrow as 700 nm and dots as small ...