Nano News & Events

Conductive ink improves mechanical durability of printed e-textiles

InterNano Industry News - 14 hours 12 min ago
Researchers have developed textile-permeable viscous ink which can be directly screen/stencil printed on textile substrates. This conductive composite enables highly conductive and stretchable wirings on textile with a simple and inexpensive way.
Categories: Nanotechnology News

3D-printed, fully integrated wireless sensor devices

InterNano Industry News - 14 hours 12 min ago
Researchers have demonstrated a fully integrated and packaged wireless sensor for environmental monitoring applications. The disposable sensor was developed using low-cost additive manufacturing technologies; namely, inkjet printing and 3D printing. This is a demonstration of 3D-printed fully-integrated System-on-Package (SoP) employing inkjet-printed sensors. This work could pave the way for low-cost disposable fully integrated wireless sensor nodes.
Categories: Nanotechnology News

Nanosheets: IBM’s Path to 5-Nanometer Transistors

InterNano Industry News - 14 hours 12 min ago
<?xml version="1.0" encoding="UTF-8"?> IBM says their stacked nanosheet transistors will give circuit designers more flexibility Photo: IBM Researchers at IBM believe the future of the transistor is in stacked nanosheets. After a decade of research, most recently in partnership with Samsung and Global Foundries, the company will describe 5-nanometer node test chips based on these transistors today at the Symposium on VLSI Technology and Circuits in Kyoto. Today’s state-of-the-art transistor is the finFET, named for the fin-like ridges of current-carrying silicon that project from the chip’s surface. The silicon fins are surrounded on their three exposed sides by a structure called the gate. The gate switches the flow of current on, and prevents electrons from leaking out when the transistor is off. This design is expected to last from this year’s bleeding-edge process technology, the “10-nanometer” node, through the next node, 7 nanometers. But any smaller, and these transistors will become difficult to switch off: electrons will leak out, even with the three-sided gates. So the semiconductor industry has been working on alternatives for the upcoming 5 nanometer node. One popular idea is to use lateral silicon nanowires that are completely surrounded by the gate, preventing electron leaks and saving power. This design is called “gate all around.” IBM’s new design is a variation on this. In their test chips, each transistor is made up of three stacked horizontal sheets of silicon, each only a few nanometers thick and completely surrounded by a gate. Why a sheet instead of a wire? Huiming Bu, director of silicon integration and devices at IBM, says nanosheets can bring back one of the benefits of pre-finFET, planar designs. Designers used to be able to vary the width of a transistor to prioritize fast operations or energy efficiency. Varying the amount of silicon in a finFET transistor is not practicable because it would mean making some fins taller and other shorter. Fins must all be the same height due to manufacturing constraints, says Bu. IBM’s nanosheets can range from 8 to 50 nanometers in width. “Wider gives you better performance but takes more power, smaller width relaxes performance but reduces power use,” says Bu. This will allow circuit designers to pick and choose what they need, whether they are making a power efficient mobile chip processor or designing a bank of SRAM memory. “We are bringing flexibility back to the designers,” he says. The test chips have 30 billion transistors. The company has not benchmarked them against 7 nanometer designs, since those are not on the market. Compared to 10 nanometer chips, the new designs have a 40 percent performance enhancement at a given power; at matched performance, they can save 75 percent on power. Mukesh Khare, vice president of semiconductor technology and research at IBM, says that the company has spent years working on the process technology and materials for making stacked nanosheets. The research chips were made using electron-beam lithography—a technology too expensive for mass production. But by the time 5-nanometer chips go into production extreme-ultraviolet lithography (EUV) will be available to reduce costs, according to Khare. He says that it takes the same number of EUV lithography masks—the patterns to be projected onto to the chip to form transistor components—to make a 5-nanometer nanosheet transistor as it does to make an equivalent finFET. IBM plans to offer this technology to their customers at the 5-nanometer node. “We think this will become the prevalent structure beyond finFET,” says Khare. 
Categories: Nanotechnology News

Making flexible electronics with nanowire networks

InterNano Industry News - 14 hours 12 min ago
A smartphone touchscreen is an impressive piece of technology. It displays information and responds to a user's touch. But as many people know, it's easy to break key elements of the transparent, electrically conductive layers that make up even the sturdiest rigid touchscreen. If flexible smartphones, e-paper and a new generation of smart watches are to succeed, they can't use existing touchscreen technology.
Categories: Nanotechnology News

New Method for Producing Ultralight Sponge-Like Materials from Nanoscale Ceramic Fibers

InterNano Industry News - 14 hours 12 min ago
Ceramic materials are likely to shatter when they are deformed, however latest research demonstrates a technique of using ultra-thin ceramic nanofibers in order to make heat-resistant, squishy sponges...
Categories: Nanotechnology News

Graphene and quantum dots put in motion a CMOS-integrated camera that can see the invisible

InterNano Industry News - 14 hours 12 min ago
Researchers have shown for the first time the monolithic integration of a CMOS integrated circuit with graphene, resulting in a high-resolution image sensor consisting of hundreds of thousands of photodetectors based on graphene and quantum dots.
Categories: Nanotechnology News

Tricking molecules into creating new nano-shapes

InterNano Industry News - 14 hours 12 min ago
Scientists have devised materials that can create complex three-dimensional structures. They did it by exploiting how molecules self-assemble, spontaneously packing into nano-sized shapes.
Categories: Nanotechnology News

A low-tech, solution-based route to high-performance carbon nanotube thin films

InterNano Industry News - 14 hours 12 min ago
This novel method produces a film with millions of carbon nanotubes aligned and tightly packed, like water pipes on a flatbed truck. The tubes are orders of magnitude better aligned than previously possible.
Categories: Nanotechnology News

Copper embedded in carbon nano-spikes can turn carbon dioxide into ethanol

InterNano Industry News - 14 hours 12 min ago
Scientists found that tiny spikes of carbon combined with copper particles convert carbon dioxide into ethanol fuel. The catalysts take a waste product of coal used in power plants and other hydrocarbon combustion reactions, in the presence of electrical energy, and create liquid fuel.
Categories: Nanotechnology News

3D printer nanoinks from the woods (w/video)

InterNano Industry News - 14 hours 12 min ago
Researchers have succeeded in developing an environmentally friendly ink for 3D printing based on cellulose nanocrystals. This technology can be used to fabricate microstructures with outstanding mechanical properties, which have promising potential uses in implants and other biomedical applications.
Categories: Nanotechnology News

Off-the-shelf, power-generating clothes are almost here

InterNano Industry News - 14 hours 12 min ago
Researchers introduce coating that turns fabrics into circuits.
Categories: Nanotechnology News

Ready to wear electronics

InterNano Industry News - 14 hours 12 min ago
A group of scientists dreams of clothing that produces energy as we walk. They have combined very different nanomaterials into so-called energy harvesters.
Categories: Nanotechnology News

Graphene on silicon carbide can store energy

InterNano Industry News - 14 hours 12 min ago
By introducing defects into the perfect surface of graphene on silicon carbide, researchers have increased the capacity of the material to store electrical charge.
Categories: Nanotechnology News

Printed, flexible and rechargeable battery can power wearable sensors (w/video)

InterNano Industry News - 14 hours 12 min ago
Nanoengineers have developed the first printed battery that is flexible, stretchable and rechargeable. The zinc batteries could be used to power everything from wearable sensors to solar cells and other kinds of electronics.
Categories: Nanotechnology News

Graphene-nanotube hybrid boosts lithium metal batteries

InterNano Industry News - 14 hours 12 min ago
Scientists have created a rechargeable lithium metal battery with three times the capacity of commercial lithium-ion batteries by resolving something that has long stumped researchers: the dendrite problem.
Categories: Nanotechnology News

New water-based, recyclable membrane filters all types of nanoparticles

InterNano Industry News - 14 hours 12 min ago
Researchers have developed a new type of membrane that could extend the life of a separation system, lower its cost and, in some cases, increase its efficiency as well.
Categories: Nanotechnology News

EPA Will Publish Draft Guidance for Reporting Nanoscale Materials for Comment

InterNano Industry News - 14 hours 12 min ago
The U.S. Environmental Protection Agency (EPA) is scheduled to publish a Federal Register notice on May 16, 2017, announcing the availability of and requesting public comment on a draft guidance document entitled “Guidance on EPA’s Section 8(a) Information Gathering Rule on Nanomaterials in Commerce.”  EPA states in the pre-publication notice that the guidance provides answers to questions EPA has received from manufacturers (includes importers) and processors of certain chemical substances when they are manufactured or processed at the nanoscale as described in the January 12, 2017, final rule.  The final rule involves one-time reporting for existing discrete forms of certain nanoscale materials, and a standing one-time reporting requirement for new discrete forms of certain nanoscale materials.  The notice lists the following North American Industrial Classification System (NAICS) codes to help readers determine whether the document may apply to them: Chemical Manufacturing or Processing (NAICS Code 325); Synthetic Dye and Pigment Manufacturing (NAICS Code 325130); Other Basic Inorganic Chemical Manufacturing (NAICS Code 325180); Rolled Steel Shape Manufacturing (NAICS Code 331221); Semiconductor and Related Device Manufacturing (NAICS Code 334413); Carbon and Graphite Product Manufacturing (NAICS Code 335991); Home Furnishing Merchant Wholesalers (NAICS Code 423220); Roofing, Sliding, and Insulation Material Merchant Wholesalers (NAICS Code 423330); and Metal Service Centers and Other Metal Merchant Wholesalers (NAICS Code 423510). EPA states that it will make the draft guidance available on its website at https://www.epa.gov/reviewing-new-chemicals-under-toxic-substances-control-act-tsca/control-nanoscale-materials-under#guidance, and will also be available in Docket ID number EPA-HQ-OPPT-2010-0572.  EPA states that it will accept comments regarding the guidance, but not regarding the rule itself, “which has already been finalized.”  Comments will be due 30 days after the notice is published in the Federal Register.  More information regarding the final rule is available in our January 12, 2017, memorandum, “EPA Promulgates Final TSCA Reporting and Recordkeeping Rule for Nanoscale Materials
Categories: Nanotechnology News

Transforming greenhouse gas CO2 into carbon nanotubes

InterNano Industry News - 14 hours 12 min ago
In two new studies, researchers show that cement plants can have their carbon dioxide exhaust eliminated while co-producing carbon nanotubes. They demonstrate that with their C2CNT (carbon dioxide into carbon nanotubes) process, a wide portfolio of tailored carbon nanotubes, such as those with special shapes or conductivity can be made. C2CNT is a straightforward process that transforms CO2 to carbon nanotubes by molten electrolysis with inexpensive (nickel and steel) electrodes and low voltage. This synthesis consumes only CO2 and electricity, and is constrained only by the cost of electricity.
Categories: Nanotechnology News

A Short film by the CHN

InterNano Industry News - 14 hours 12 min ago
The Nanoscale Offset Printing System (NanoOPS) is a novel nanomanufacturing tool designed by the NSF Center for High-rate Nanomanufacturing at Northeastern University.
Categories: Nanotechnology News

NanoOPS at Northeastern University

InterNano Industry News - 14 hours 12 min ago
WTEC.org has published a short film on YouTube. Their website is here. From their website: “WTEC is the nation’s leading organization in conducting international technology assessments. During the 1990s, it was called the World Technology Evaluation Center (WTEC) Division of Loyola University Maryland. In 2001, WTEC was spun off into a separate nonprofit corporation by R. D. Shelton. WTEC now also provides other services to public and private sector clients.”
Categories: Nanotechnology News