Power/Performance Bits: May 2


Turning bottles into batteries Researchers at the University of California, Riverside used waste glass bottles and a low-cost chemical process to create nanosilicon anodes for high-performance lithium-ion batteries. Billions of glass bottles end up in landfills every year, prompting the researchers to ask whether silicon dioxide in waste beverage bottles could provide high purity silicon ... » read more

Power/Performance Bits: March 21


Tiny redox flow batteries for chips Researchers at ETH Zurich and IBM Research Zurich built a tiny redox flow battery capable of both powering and cooling stacks of chips. In a flow battery, an electrochemical reaction is used to produce electricity out of two liquid electrolytes, which are pumped to the battery cell from outside via a closed electrolyte loop. Such batteries are usually u... » read more

Power/Performance Bits: Nov. 23


Increasing lithium battery density Researchers at Columbia University developed a new method to increase the energy density of lithium batteries using a trilayer structure that is stable in ambient air. "When lithium batteries are charged the first time, they lose anywhere from 5-20% energy in that first cycle," said Yuan Yang, assistant professor of materials science and engineering at C... » read more

Power/Performance Bits: Oct. 18


Speeding up memory with T-rays Scientists at the Moscow Institute of Physics and Technology (MIPT), the University of Regensburg in Germany, Radboud University Nijmegen in the Netherlands, and Moscow Technological University proposed a way to improve the performance of memory through using T-waves, or terahertz radiation, as a means of resetting memory cells. This process is several thousand... » read more

System Bits: March 29


Cryptographic system for controlling app access to data Researchers at MIT and Harvard University are hoping to change the fact that users of smartphones have no idea which data items their apps are collecting, where they’re stored, and if they’re stored securely with an application they’ve developed called Sieve. With Sieve, a Web user would store all personal data, in encrypted form... » read more

Power/Performance Bits: June 16


Lighting up graphene A team of scientists from Columbia University, Seoul National University, and Korea Research Institute of Standards and Science demonstrated an on-chip visible light source using graphene as a filament. They attached small strips of graphene to metal electrodes, suspended the strips above the substrate, and passed a current through the filaments to cause them to heat up.... » read more

Power/Performance Bits: June 9


Building foam batteries out of trees A method for making elastic high-capacity batteries from wood pulp was unveiled by researchers in Sweden and the US. Using nanocellulose broken down from tree fibers, a team from KTH Royal Institute of Technology and Stanford University produced an elastic, foam-like battery material that can withstand shock and stress. "It is possible to make incredib... » read more

High-Performance Analog And RF Circuit Simulation Using The Analog FastSPICE Platform At Columbia University


The research group led by Professor Peter Kinget at the Columbia University Integrated Systems Laboratory (CISL) focuses on cutting edge analog and RF circuit design using digital nanoscale CMOS processes. Areas of research include design techniques for circuits operating below 1 V, digitally calibrated RF front ends for superior linearity performance, LO synthesizers for wireless applications,... » read more

High-Performance Analog And RF Circuit Simulation Using The Analog FastSPICE Platform At Columbia University


The research group led by Professor Peter Kinget at the Columbia University Integrated Systems Laboratory (CISL) focuses on cutting edge analog and RF circuit design using digital nanoscale CMOS processes. Areas of research include design techniques for circuits operating below 1 V, digitally calibrated RF front ends for superior linearity performance, LO synthesizers for wireless applications,... » read more

Power/Performance Bits: March 17


Artificial photosynthesis: leaves of nickel Inspired by a chemical process found in leaves, Caltech scientists developed an electrically conductive film that could help pave the way for devices capable of harnessing sunlight to split water into hydrogen fuel. When applied to semiconducting materials (it's been tested with silicon, indium phosphide, and cadmium telluride), the team's film ... » read more

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