Nano News & Events

Self-organizing graphene nanodots

InterNano Industry News - October 14, 2017 - 3:46am
The ultimate challenge of nanotechnology is to control the structure of matter with atomic precision. The better we are at shaping and structuring material on a small scale, the more powerful technology we can dream of. Unfortunately, the atomic scale is entirely out of range for conventional patterning. Researchers now report that they have achieved nanoscale self-assembly within a two-dimensional layer. Dosing of ethylene and borazine near a hot iridium surface, leads for self-organising of a two-dimensional superlattice of graphene dots.
Categories: Nanotechnology News

Current state of fabricating molecular electronics

InterNano Industry News - October 14, 2017 - 3:46am
Since the early days of molecular electronics, tremendous progress has been achieved both theoretically and experimentally by scientists and engineers who were fascinated by intriguing physical, chemical phenomena, and potential device applications of molecular junctions. In a recent paper, scientists review recent experimental efforts for pursuing high-yield functional molecular devices, in which a bundle of molecules (the contacted molecules number more than 1000) is contained in a junction.
Categories: Nanotechnology News

3D-printed, fully integrated wireless sensor devices

InterNano Industry News - October 14, 2017 - 3:46am
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 - October 14, 2017 - 3:46am
<?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

MIT awarded UNESCO Medal for contributions to nanoscience and nanotechnologies

InterNano Industry News - October 3, 2017 - 3:46am
MIT has been honored with the UNESCO Medal for contributions to the development of nanoscience and nanotechnologies by the United Nations Educational, Scientific and Cultural Organization (UNESCO). Established in 2010, the UNESCO Medal has awarded over 30 prominent scientists and public figures for their individual contributions to advancing the fields of nanoscience and nanotechnologies. This year MIT shares the distinction, along with St. Petersburg State University of Information Technologies in Russia, of being the first organization to be recognized. In addition to the two universities, four eminent scientists from Korea, the United Arab Emirates, Ukraine, and the United Kingdom, were recipients of the medal. An awards ceremony was held on Oct. 11 at the UNESCO headquarters in Paris, France. Institute Professor Mildred (Millie) Dresselhaus, a nanoscience pioneer who herself has won many recognitions including the U.S. Presidential Medal of Freedom and the L'Oreal-UNESCO Award for Women in Science, made the trip at the invitation of President Rafael Reif to accept the medal on behalf of MIT. “Using science and technology as a way to bring people together is something MIT has learned to do really well,” says Dresselhaus. “Our faculty, staff, and students come together from countries all over the world with diverse technical backgrounds to work across the many academic departments and laboratories on campus. This culture of interdisciplinary collaboration enables us to work for common goals, so it made sense to me that MIT was recognized as an institution. This should serve as encouragement to move forward as rapidly as possible to complete MIT.nano and to achieve some exceptionally great outcomes through this initiative as it comes to fruition.” The award will eventually be displayed within the public spaces of MIT.nano — the 214,000-square-foot center for nanoscience and nanotechnology that is currently under construction in the heart of the MIT campus — after the building opening in June 2018, says Vladimir Bulović, faculty lead of the project. The UNESCO Medal is an initiative of the International Commission responsible for developing the Encyclopedia of Life Support Systems theme on nanoscience and nanotechnologies. Each year, the medal recognizes those making significant contributions in the field in an effort to showcase the tremendous benefits of progress being made. MIT joins a distinguished group of scientists who have received the medal thus far, including Nobel Prize-winners in physics Zhores Alferov and Isamu Akasaki.
Categories: Nanotechnology News

UMass Amherst unveils high-tech labs - The Recorder

InterNano Industry News - October 3, 2017 - 3:46am
The RecorderUMass Amherst unveils high-tech labsThe RecorderThe five laboratories opened to the public Friday serve a large number of purposes that manufacturers will find appealing: roll-to-roll fabrication for nanomanufacturing; 3-D printing for wearable medical devices and biosensors; verification of those ...
Categories: Nanotechnology News

Flexible and cost-effective fabrication of nature inspired structural colors

InterNano Industry News - October 3, 2017 - 3:46am
Scientists have successfully developed a new and cost-effective method for obtaining biomimetic structural colors with the ability to finely tune the completed structures.
Categories: Nanotechnology News

Highly sensitive nanofiber-embedded touchscreens

InterNano Industry News - October 3, 2017 - 3:46am
Researchers have demonstrated the fabrication of transparent and flexible cellulose nanofiber films with high k values by incorporating ultralong metal nanofibers.
Categories: Nanotechnology News

California court revokes US EPA approval of nanosilver product

InterNano Industry News - October 3, 2017 - 3:46am
A federal appeals court in California has revoked the Environmental Protection Agency's conditional approval of a nanosilver product used in a wide range of consumer products.
Categories: Nanotechnology News

Piezoelectric nanogenerators for self-powered flexible sensors

InterNano Industry News - October 3, 2017 - 3:46am
Researchers have demonstrated a high performance flexible piezoelectric nanogenerator based on a piezoelectrically enhanced nanocomposite micropillar array of BaTiO3 nanoparticles embedded into a highly crystalline polymer for efficient energy harvesting and highly sensitive self-powered sensing.
Categories: Nanotechnology News

Design and fabrication of 3D-printed stretchable tactile sensors

InterNano Industry News - October 3, 2017 - 3:46am
Researchers demonstrate the design and fabrication of stretchable tactile sensors that are 3D printed under ambient conditions via a combination of nanocomposite ink optimization, 3D imaging, and multimaterial 3D printing.
Categories: Nanotechnology News

Making flexible electronics with nanowire networks

InterNano Industry News - October 3, 2017 - 3:46am
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

Nanofabrication: A slick route to smart surfaces

InterNano Industry News - September 17, 2017 - 3:45am
Controlled rupturing of thin films can make low-cost nanopatterned arrays for solar cells and biomolecular detection.
Categories: Nanotechnology News

Graphene ribbons result in 100-fold increase in gold catalyst's performance

InterNano Industry News - September 17, 2017 - 3:45am
Bottom-up synthesis of tunable carbon nanoribbons provides a new route to enhance industrial, automotive reactions.
Categories: Nanotechnology News

Graphene and terahertz waves could lead the way to future communication

InterNano Industry News - September 17, 2017 - 3:45am
By utilizing terahertz waves in electronics, future data traffic can get a big boost forward. So far, the terahertz (THz) frequency has not been optimally applied to data transmission, but by using graphene, researchers have come one step closer to a possible paradigm shift for the electronic industry.
Categories: Nanotechnology News

New 'gold standard' for flexible electronics

InterNano Industry News - September 17, 2017 - 3:45am
Simple, economical process makes large-diameter, high-performance, thin, transparent, and conductive foils for bendable LEDs and more.
Categories: Nanotechnology News

Symposium explores possibilities of origami nanomachines

InterNano Industry News - September 17, 2017 - 3:45am
Origami usually brings to mind folded paper cranes, but scientists see in origami the promise of nanoscale machinery.
Categories: Nanotechnology News

Nanoparticles as food additives: improving risk assessment

InterNano Industry News - September 17, 2017 - 3:45am
The anticaking agent E551 silicon dioxide, or silica, has been used widely in the food industry over the past 50 years, and was long thought to be quite safe. Now, however, researchers have discovered that these nanoparticles can affect the immune system of the digestive tract.
Categories: Nanotechnology News

Nanosheets may produce more durable and longer lasting lithium-ion batteries

InterNano Industry News - September 17, 2017 - 3:45am
The team invented a generalized method of producing anode materials for lithium-ion batteries. The anodes are made from ultrathin metal oxide nanosheets, which are ultrathin, two-dimensional materials with excellent electrochemical and mechanical properties.
Categories: Nanotechnology News

Centimeter-sized objects 3D-printed with graphene foam

InterNano Industry News - September 17, 2017 - 3:45am
Nanotechnologists have used 3-D laser printing to fabricate centimeter-sized objects of atomically thin graphene.
Categories: Nanotechnology News