Patent ID: 9209331
Filing Date: 2015-12-08
Classification: H01L,Y02E

Abstract:
1. An optically sensitive device comprising: a first contact; an n-type semiconductor; an optically sensitive material comprising a p-type semiconductor; a second contact; a magnitude of the work function of the optically sensitive material being at least 0.4 eV greater than a magnitude of the work function of the first contact, and also at least 0.4 eV greater than a magnitude of the work function of the second contact; the optically sensitive material having an electron lifetime that is greater than an electron transit time from the first contact to the second contact when a bias is applied between the first contact and the second contact; the n-type semiconductor providing injection of electrons and blocking the extraction of holes; and the interface between the n-type semiconductor and the optically sensitive material providing a surface recombination velocity less than 1 cm/s.