Solution‐Processed Antimony Selenide Heterojunction Solar Cells

Sb2Se3 is introduced as the absorber layer for thin film photovoltaics because of its very attractive material, optical, and electrical properties. High quality Sb2Se3 films are produced using a hydrazine solution process, and a heterojunction TiO2/Sb2Se3 solar cell achieving 2.26% efficiency with an impressive high open circuit voltage of 0.52 V is reported.