|
|||||
|
|
Sub‐Bandgap Excitation‐Induced Electron Injection from CdSe Quantum Dots to TiO2 in a Directly Coupled System |
|
| Authors: | Mari Yoshii Prof Dr Hisayoshi Kobayashi Prof Dr Hiroaki Tada |
| Institution: | 1. Department of Applied Chemistry, School of Science and Engineering, Kinki University, 3‐4‐1, Kowakae, Higashi‐Osaka, Osaka 577‐8502 (Japan);2. Department of Chemistry and Materials Technology, Kyoto Institute of Technology, Matsugasaki, Sakyo‐ku, Kyoto, 606‐8585 (Japan) |
| Abstract: | We show that the sub‐bandgap excitation of a directly coupled CdSe quantum dot (QD)–TiO2 system induces electron injection from CdSe levels to the conduction band of TiO2, leading to spectral extension of the light response. We anticipate that this study presents a useful guideline for improving the conversion efficiency of QD‐sensitized solar cells. |
| Keywords: | CdSe density functional theory calculation interfacial electron transfer quantum dot‐sensitize solar cells TiO2 |