Citation: WANG Jie, JI Ya-Jun, DENG Ya-Lei, ZHOU Lu-Wei. Preparation and Photoelectric Performance of CdTe/CdS Co-sensitized TiO₂ Electrode Materials[J]. Chinese Journal of Inorganic Chemistry, ;2018, 34(2): 255-262. doi: 10.11862/CJIC.2018.051 shu

Preparation and Photoelectric Performance of CdTe/CdS Co-sensitized TiO₂ Electrode Materials

College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China

Corresponding author: JI Ya-Jun, jiyajun@usst.edu.cn
Received Date: 30 August 2017
Revised Date: 7 November 2017

Figures(8)

The CdTe and CdS nanocrystals were deposited on the TiO₂ nanotube arrays by electrodeposition and chemical bath deposition method to obtain CdTe/CdS nanocrystals co-sensitized TiO₂ photoelectrodes. The morphology, crystallinity and composition of samples were characterized by SEM, XRD and EDS. Under standard solar light irradiation, the photoelectrochemical performance of resulted photoelectrodes were investigated by means of electrochemical work station. The results show that the photoelectric conversion performance of co-sensitized CdTe/CdS/TiO₂ photoelectrodes exhibit more excellent performance than that of single-sensitized CdS/TiO₂ and CdTe/TiO₂ based photoelectrodes. The short circuit photocurrent density and photoelectric conversion efficiency of CdTe/CdS/TiO₂ could reach up to 3.1 mA·cm^-2 and 1.85%, respectively. Meanwhile, the electrochemical impedance test has also been applied to further investigate the principle of enhanced performance.
- TiO₂ nanotube array,
- electrodeposition,
- chemical bath deposition,
- co-sensitization,
- photoelectrochemical performance
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Preparation and Photoelectric Performance of CdTe/CdS Co-sensitized TiO₂ Electrode Materials