Fe-doping-induced band structure modification and cryogenic phase stability in Cs2AgBiBr6 single crystals

Yanan Li, Xuejiao Wu, Jidong Deng +1

Despite its promise as a lead-free alternative, the practical application of Cs2AgBiBr6 in optoelectronics is limited by its wide band gap and detrimental intrinsic defects. To ove…