Optoelectronic Properties and Defect Physics of Lead-free Photovoltaic Absorbers Cs${}_2$Au${}^I$Au${}^{III}$X${}_6$ (X=I, Br)

Jiban Kangsabanik, Supriti Ghorui, M. Aslam +1

Stability and toxicity issues with the hybrid lead iodide perovskite MAPbI${}_3$ necessitate a hunt for potential alternatives. Here, we shed light on promising photovoltaic properti…