n-CdS/p-Si heterojunction solar cells

Abstract
The photovoltaic properties of n‐CdS/p‐Si heterojunctions prepared by vacuum deposition of CdS:In on single‐crystal silicon substrates are reported. Power conversion efficiencies of 9.5% (cell area 1.5 cm2) have been obtained. The IV characteristics and their temperature dependance suggest tunneling as the dominant conduction mechanism.