Hybrid ribbons of vanadium oxide (VO2) and graphene may accelerate the development of high-power lithium-ion batteries suitable for electric cars and other demanding applications.
Nanomaterials
Mar 25, 2013
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(Phys.org) —Scientists working at the Stanford Institute for Materials and Energy Sciences (SIMES) have improved an innovative solar-energy device to be about 100 times more efficient than its previous design in converting ...
Energy & Green Tech
Mar 20, 2013
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Imagine that the chips in your smart phone or computer could repair and defend themselves on the fly, recovering in microseconds from problems ranging from less-than-ideal battery power to total transistor failure. It might ...
Electronics & Semiconductors
Mar 10, 2013
14
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(Phys.org)—It's relatively simple to build a device capable of detecting wireless signals if you don't mind making one that consumes lots of power. It's not so easy to design energy-efficient devices that function as well ...
Electronics & Semiconductors
Feb 7, 2013
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Thermoelectric devices—which can either generate an electric current from a difference in temperature or use electricity to produce heating or cooling without moving parts—have been explored in the laboratory since the ...
Nanomaterials
Feb 6, 2013
0
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Almost all computer chips use two types of transistors: one called p-type, for positive, and one called n-type, for negative. Improving the performance of the chip as a whole requires parallel improvements in both types.
Electronics & Semiconductors
Jan 2, 2013
14
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(Phys.org)—Files obtained by the Electronic Privacy Information Center (EPIC) and provided to CNET show that the National Security Agency (NSA) under its secret Perfect Citizen program is looking at the computerized systems ...
Princeton researchers have found a simple and economic way to nearly triple the efficiency of organic solar cells, the cheap and flexible plastic devices that many scientists believe could be the future of solar power.
Nanomaterials
Dec 6, 2012
26
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In a discovery that helps clear a new path toward quantum computers, University of Michigan physicists have found elusive Dirac electrons in a superconducting material.
Quantum Physics
Dec 4, 2012
8
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(Phys.org)—The cherished portability of many popular electronics, from smart phones to laptops, mostly comes courtesy of lithium-ion batteries. Unfortunately, these dense and lightweight energy storage devices begin to ...
Materials Science
Nov 27, 2012
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