Upright-Standing SnO₂ Nanosheets Glazed CdSe Nanocrystallites: High Photocurrent Generating Photoelectrochemical Cells

摘要

Efficient charge separation in photoelectrochemical cell composed of solution-processed SnO2nanosheets (NSs)-CdSe nanocrystallites (NCs), is investigated. The SnO2 NSs decorated with CdSeNCs, confirmed from the structural elucidation and morphological evolution studies, electrode2 exhibited 16.40 mA/cm and 2.70% short circuit current density and power conversion efficiency2 which were superior to pristine CdSe nanowires-based electrode (9.44 mA/cm , 1.44%). Thisincrement was caused by relatively smaller recombination losses followed by higher electron life timeand was well-supported from the photoluminescence, incident photon-to-current efficiency andelectrochemical impedance spectroscopy measurements.