Publication date: 6th November 2020
Antimony selenosulfide, Sb2(S,Se)3, is a kind of emerging light harvesting material for solar cell applications. The band gap is tunable in 1.1-1.8 eV with regard to the change in Se/S atomic ratio, it also possesses high extinction coefficient in visible range (～105 cm-1). In addition, this metal chalcogenide material is stable with moisture an oxygen, thus promising for practical applications. In this presentation, I will introduce our recent research in the development of film fabrication method, where we found that the hydrothermal deposition is able to generate Sb2(S,Se)3 film with flat and compact surface morphology, reduced defect and favorable crystal orientation. With that, the solar cell overcoming the 10% efficiency barrier.
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