In the case of QDSSCs, excited electrons of semicon ductor nanocrystals (NCs) are injected into a large band gap semiconductor such as TiO2 [4–10] or ZnO [9, 11–14], while holes are scavenged by a redox cou ple.
In the case of QDSSCs, excited electrons of semiconductor nanocrystals (NCs) are injected into a largeband gap semiconductor such as TiO2 [4–10] or ZnO[9, 11–14], while holes are scavenged by a redox couple.