Fabrication of SnS-MgSnO heterojunction solar cells using vacuum thermal evaporation and sol-gel method

摘要

SnS films present great potential as absorber materials. MgSnO films were chosen as a buffer layer forming a heterojunction with SnS for photovoltaic applications. We investigated the effects of Mg on heterojunction solar cell performance. After amorphous MgSnO films were prepared using sol-gel method, SnS films were deposited using thermal evaporation. The SnS/MgSnO structure showed rectifying and photovoltaic characteristics, although the SnS/SnO2 structure exhibited no rectifying characteristic. The SnS/ MgSnO solar cell reached conversion efficiency of 2.1%. (C) 2018 Elsevier B.V. All rights reserved.