Enhanced transient photovoltaic characteristics of core–shell ZnSe/ZnS/L-Cys quantum-dot-sensitized TiO2 thin-film Project supported by the Natural Science Foundation of Hebei Province, China (Grant Nos. E2013203296 and E2017203029). |
(color online) Room-temperature UV-VIS absorption spectra of (a) as-prepared nano-TiO2 thin film with three layers, (b) ZnSe QDs, and (c) ZnSe QD-sensitized nano-TiO2 thin film at the sensitized temperature of 60 °C for 5.0 h. The corresponding Tauc relations are illustrated as plots in insets. |