Interfacial bond engineering in antimony selenosulfide solar cells via methylammonium lead bromide perovskite film as a hole transport layer

Innovative MAPbBr 3 hole transport layer (HTL) in Sb 2 (S,Se) 3 solar cells yields 9.37% PCE, enabled by cliff-like band alignment (Δ E VBM = 0.12 eV) suppressing hole recombination and interfacial chemical coordination facilitating carrier transport.