Skip to Content
Merck

High quantum efficiency GaP avalanche photodiodes.

Optics express (2011-10-15)
Dion McIntosh, Qiugui Zhou, Yaojia Chen, Joe C Campbell
PMID21996902
ABSTRACT

Gallium Phosphide (GaP) reach-through avalanche photodiodes (APDs) are reported. The APDs exhibited dark current less than a pico-ampere at unity gain. A quantum efficiency of 70% was achieved with a recessed window structure; this is almost two times higher than previous work.