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 11:30am12/22/11 11:30am