Power/Performance Bits: Aug. 15


Solar sunglasses Researchers at the Karlsruhe Institute of Technology (KIT) developed sunglasses with colored, semitransparent organic solar cells applied onto the lenses capable of supplying a microprocessor and two displays with electric power. The solar cell lenses, perfectly fitted to a commercial frame, have a thickness of approx. 1.6 millimeters and weigh about six grams, just like th... » read more

Power/Performance Bits: Aug. 8


Energy-efficient neural nets Researchers from MIT developed new techniques for more energy-efficient neural networks, offering as much as a 73% reduction in power consumption over the standard implementation of neural networks, and as much as a 43% reduction over the best previous method for paring the networks down. First, they developed an analytic method that can determine how much power... » read more

Power/Performance Bits: Aug. 1


Concentrating photovoltaics Engineers at Penn State University and the University of Illinois at Urbana-Champaign tested a new concentrating photovoltaic solar system, which they say can produce over 50% more energy per day than standard silicon solar cells. In contrast to silicon solar panels, which currently dominate the market at 15 to 20 percent efficiency, concentrating photovoltaics (... » read more

Power/Performance Bits: July 25


Sodium-ion cathode Researchers at the University of Texas at Dallas and Seoul National University developed a manganese and sodium-ion-based cathode material they hope could lead to lower-cost rechargeable batteries. In a typical lithium-ion battery, the cathode is made of lithium, cobalt, nickel and oxygen. "Lithium is a more expensive, limited resource that must be mined from just a fe... » read more

Power/Performance Bits: July 18


Ad hoc "cache hierarchies" Researchers at MIT and Carnegie Mellon University designed a system that reallocates cache access on the fly, to create new "cache hierarchies" tailored to the needs of particular programs. Dubbed Jenga, the system distinguishes between the physical locations of the separate memory banks that make up the shared cache. For each core, Jenga knows how long it would t... » read more

Power/Performance Bits: July 11


3D chip integrates computing, storage Researchers at Stanford University and MIT developed a prototype 3D chip that integrates computation and data storage, based on carbon nanotubes and resistive RAM (RRAM) cells. The researchers integrated over 1 million RRAM cells and 2 million carbon nanotube FETs, making what the team says is the most complex nanoelectronic system ever made with emergi... » read more

Power/Performance Bits: July 3


Transient electronics Researchers at Vanderbilt University took a new approach to transient electronics, creating circuits that, rather than requiring active behavior to destruct, will dissolve if not kept above a certain temperature. Using silver nanowires embedded in a polymer that dissolves in water below 32 degrees Celsius – between body and room temperature – the team made a simple... » read more

Power/Performance Bits: June 27


Superconducting nanowire memory cell Researchers at the University of Illinois at Urbana-Champaign and the State University of New York at Stony Brook developed a new nanoscale memory cell that provides stable memory at a smaller size than other proposed memory devices, and holds promise for successful integration with superconducting processors. The device comprises two superconducting nan... » read more

Power/Performance Bits: June 20


Batteries from scrap metal Scientists at the Chinese Academy of Sciences and Jilin University found a method to transform rusty stainless steel mesh into electrodes with outstanding electrochemical properties that make them ideal for potassium-ion batteries. The rust is converted directly into a compact layer with a grid structure that can store potassium ions. A coating of reduced graphite... » read more

Power/Performance Bits: June 13


Theoretical all-carbon circuits Engineers at the University of Texas at Dallas, the University of Illinois at Urbana-Champaign, the University of Central Florida, and Northwestern University designed a novel computing system made solely from carbon. "The concept brings together an assortment of existing nanoscale technologies and combines them in a new way," said Dr. Joseph S. Friedman, ass... » read more

← Older posts