Mg-doped TiO2 nanorods improving open-circuit voltages of ammonium lead halide perovskite solar cells†
Abstract
Mg-doped TiO2 nanorods were successfully synthesized from colloidal titanate by a microwave hydrothermal reaction. Use of such TiO2 having an elevated conduction band edge as an electron extracting material for ammonium lead halide perovskite solar cells resulted in an increase of Voc by as much as 215 mV.