Lead acetate precursors for preparing CsPbI3 light harvester layers of inorganic perovskite solar cells

•a-CsPbI3 light harvester layers are prepared at low temperature without hydrogen iodide additive.•Lead acetate is used as the lead source of precursor solutions.•Ethylenediaminium iodide can cooperates with the lead acetate precursor.•The grain size of CsPbI3 layers is increased and their trap dens...

Ausführliche Beschreibung