標題: SrTiO3/TiO2 Hybridstructure as Photoanode in Dye-Sensitized Solar Cell
作者: Wang, Yu-Shiuan
Chen, Ting-Ting
Huang, Yi-Jen
Huang, Tzu-Ping
Lee, Yin-Yu
Chiu, Hsin-Tien
Lee, Chi-Young
應用化學系
Department of Applied Chemistry
關鍵字: SrTiO3;Charge recombination;Electron injection
公開日期: 1-十二月-2013
摘要: In dye-sensitized solar cells (DSSCs), the charge recombination at the TiO2/dye/electrolyte interface greatly influences the photoelectron conversion efficiency. Hybrid semiconductor materials with matched band potentials are designed to reduce the charge recombination. In this study, SrTiO3/TiO2 hybridstructure was synthesized by using TiO2 nanoparticles as template in a hydrothermal, showing a negative shift in the flat band potential. The DSSC with the SrTiO3/TiO2 anode exhibits an increased photovoltage and a reduced photocurrent. The suppression of charge recombination at the TiO2/dye/electrolyte interface was observed in the electrochemical impedance spectroscopy, causing an improvement in the photovoltage. However, the SrTiO3/TiO2 system shows an obstructed electrons injection from the dye to SrTiO3/TiO2, limiting the photocurrent performance. The photoelectrochemical properties of the SrTiO3/TiO2 system are discussed in detail herein.
URI: http://dx.doi.org/10.1002/jccs.201300284
http://hdl.handle.net/11536/23452
ISSN: 0009-4536
DOI: 10.1002/jccs.201300284
期刊: JOURNAL OF THE CHINESE CHEMICAL SOCIETY
Volume: 60
Issue: 12
起始頁: 1437
結束頁: 1441
顯示於類別:期刊論文