| In situ optical spectroscopic understanding of electrochemical passivation mechanism on sol–gel processed WO3 photoanodes |
| |
| 作者姓名： | Jianyong Feng Xin Zhao Bowei Zhang Zhong Chen Zhaosheng Li Yizhong Huang |
| |
| 作者单位： | 1. Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University;2. School of Materials Science and Engineering, Nanyang Technological University |
| |
| 基金项目： | supported by the National Natural Science Foundation of China (51902153, 51972165)； |
| |
| 摘 要： | A prevailing understanding on electrochemical activation of photoelectrodes is that electrochemical treatment leads to increased charge carrier densities thereby improved photoelectrode performances.Contrary to this understanding, in this study enhanced photoactivity of WO3 photoanode upon electrochemical treatment is ascribed to an extraordinary mechanism of surface trap passivation. The associated mechanism is analyzed by in situ optical spectroscopy, using which the optical propert...
|
|
