Efficient sprayed In2O3 : Sn n-type silicon heterojunction solar cell

Abstract
We present results concerning In2O3 (tin‐doped) n‐type siliconheterojunctionsolar cell. The transparent and conductive In2O3 : Sn layer was made using a very simple, cheap, and quick method. Conversion efficiency up to 10% is reported. Typical parameters under AM1 simulated sunlight are open‐circuit photovoltage V oc=500 mV, short‐circuit photocurrentI sc=32 mA cm−2, and fill factors around 0.6–0.65.