Photodetectors fabricated from rapid-thermal-oxidized porous Si

Abstract
A metal-semiconductor-metal (MSM) photoconductor and a p-n photodiode have been fabricated from rapid-thermal-oxidized (RTO) porous Si. The MSM photoconductor achieved 2.8×higher responsivity at 350 nm than a UV-enhanced Si photodiode, and the RTO photodiode exhibited an external quantum efficiency of 75% at 740 nm.