Charge Photogeneration and Transport in AgBiS₂ Nanocrystal Films for Photovoltaics

Solution-processed AgBiS₂ nanocrystal films are a promising material for nontoxic, earth-abundant solar cells. While solar cells with good device efficiency are demonstrated, so far, hardly anything is known about charge generation, transport, and recombination processes in these films. Here, a photoinduced time-resolved microwave...