System Bits: July 8


Carbon nanotubes “unzipped” into graphene nanoribbons by a chemical process invented at Rice University are finding use in all kinds of projects, but Rice scientists have now found a chemical-free way to unzip them. A Rice materials scientist discovered that nanotubes that hit a target end first turn into mostly ragged clumps of atoms, but nanotubes that happen to broadside the target un... » read more

Power/Performance Bits: June 24


Solar-cell efficiency in one step Rice University scientists have created a single-step process for producing highly efficient materials that let the maximum amount of sunlight reach a solar cell. The Rice lab of chemist Andrew Barron found a simple way to etch nanoscale spikes into silicon that allows more than 99 percent of sunlight to reach the cells’ active elements, where it can be t... » read more

Power/Performance Bits: June 17


Nanotubes boost terahertz detectors Researchers at Rice University, Sandia National Laboratories and the Tokyo Institute of Technology have developed novel terahertz detectors based on carbon nanotubes that could improve medical imaging, airport passenger screening, food inspection and other applications. Unlike current terahertz detectors, the devices are flexible, sensitive to polarizatio... » read more

Power/Performance Bits: April 29


Lithium-free flexible battery A Rice University laboratory has flexible, portable and wearable electronics in its sights with the creation of a thin film for energy storage. The researchers have developed a flexible material with nanoporous nickel-fluoride electrodes layered around a solid electrolyte to deliver battery-like supercapacitor performance that combines the best qualities of a h... » read more

Power/Performance Bits: Feb. 18


Outperforming copper Carbon nanotube-based fibers invented at Rice University have greater capacity to carry electrical current than copper cables of the same mass -- on a pound-per-pound basis -- according to new research. While individual nanotubes are capable of transmitting nearly 1,000 times more current than copper, the same tubes coalesced into a fiber using other technologies fail l... » read more

System Bits: Feb. 4


Speeding Access To Information Big data today is usually stored on multiple hard disks on a number of machines across an Ethernet network, but this storage architecture considerably increases the time it takes to access the information. Researchers at MIT have developed a storage system for big-data analytics they claim can dramatically reduce the time it takes to access information. The sy... » read more

Do Students Need More Formal Education?


A few weeks ago, some of the top researchers and practitioners in the area of formal methods converged on Portland, Oregon. The event was the annual Formal Methods in Computer-Aided Design (FMCAD) conference and Semiconductor Engineering attended the panel titled “Teaching Formal Methods: Needs, Challenges, Experiences, and Opportunities.” Panelists included: Jason Baumgartner, formal verif... » read more

Cracking The Tough Nut Using Formal Methods


Pranav Ashar, CTO of Real Intent, assured a packed room of researchers and practitioners of formal methods at the recent FMCAD conference: “Static verification is being used in the verification of designs. Every major chip out there is using static methods for sign-off today.” He used an analogy of cracking a nut. “There’s a right way and a wrong way and if you don’t pick the right me... » read more

Manufacturing Bits: Oct. 15


Better Beer Rice University has devised a polymer material that could boost the properties of natural gas, beer and soda. By adding modified, single-atom-thick graphene nanoribbons (GNRs) to thermoplastic polyurethane (TPU), Rice’s polymer material could make it more practical for vehicles to run on compressed natural gas. The material is far more impermeable to pressurized gas and lighte... » read more

Power/Performance Bits: Sept. 10


Using DNA to assemble transistors from graphene Graphene is a sheet of carbon atoms arrayed in a honeycomb pattern, just a single atom thick. It could be a better semiconductor than silicon – if we could fashion it into ribbons 20 to 50 atoms wide. Could DNA help? Stanford chemical engineering professor Zhenan Bao, believes it could. Bao and her team of researchers hope to solve a problem... » read more

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