Hitting semiconductors with a superfast electric pulse massively increases their efficiency

Researchers from Kyoto University have discovered a new technique that could dramatically improve the efficiency of some semiconductors. They took gallium arsenide, and blasted it with a terahertz range electric field pulse for just a picosecond, which lead to a 1,000-fold increase in exciton density. An exciton is a… » 12/22/11 8:30am 12/22/11 8:30am

Today A Nano-Radio, Tomorrow A Micro-Semiconductor

A radio made out of carbon nano-tubes could get better reception, than the current bulky silicon-based models. Researchers led by John Rogers at University of Illinois solved the amplification problems that had stymied previous nano-radios by making their radio on a quartz wafer the size of a grain of sand. The other… » 1/30/08 6:30am 1/30/08 6:30am