Scientific advancements in Antimony Selenosulfide Solar Cells

Abstract

Antimony Selenosulfide [〖Sb〗_2 〖(S,Se)〗_3] is a scientifically interesting, and technologically intriguing photovoltaic (PV) material for the next generation of solar cells. Recently, power conversion efficiency (PCE) of 10.81% and 20.86% have been achieved in single-junction 〖Sb〗_2 〖(S,Se)〗_3 cells, under standard (AM 1.5G) and indoor illumination (1000 lux), respectively. Prototype 〖Si/Sb〗_2 〖(S,Se)〗_3 and 〖〖Sb〗_2 〖Se〗_2/Sb〗_2 〖(S,Se)〗_3 tandem solar cells have demonstrated PCE exceeding 10%. However, various intractable factors, mainly the anisotropic carrier transport, complex defect dynamics, and non-optimized interfaces cumulate to notable photocurrent and photovoltage losses in 〖Sb〗_2 〖(S,Se)〗_3 solar cells. A comprehensive understanding of these performance-limiting factors can be instrumental in amplifying the PCE of 〖Sb〗_2 〖(S,Se)〗_3 solar cells, beyond state-of-the-art. In this context, this review provides a comprehensive discussion of device engineering strategies, incorporating key insights from device simulations. This work establishes a robust framework for enhancing the PCE and advancing the commercialization prospects of this emerging PV technology.