Effect of titanium oxide compact layer in dye-sensitized solar cell prepared by liquid-phase deposition
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- 作者：Jung-Jie Huang ; Shih-Ping Chiu ; Menq-Jion Wu ; Chun-Fa Hsu
- 刊名：Applied Physics A: Materials Science & Processing
- 出版年：2016
- 出版时间：November 2016
- 年：2016
- 卷：122
- 期：11
- 全文大小：1,389 KB
- 刊物类别：Physics and Astronomy
- 刊物主题：Physics
Condensed Matter
Optical and Electronic Materials
Nanotechnology
Characterization and Evaluation Materials
Surfaces and Interfaces and Thin Films
Operating Procedures and Materials Treatment - 出版者：Springer Berlin / Heidelberg
- ISSN：1432-0630
- 卷排序：122
文摘
In this study, titanium dioxide films were deposited on indium tin oxide glass substrates by liquid-phase deposition (LPD) for application as the compact layer in dye-sensitized solar cells (DSSCs). A deposition solution of ammonium hexafluorotitanate and boric acid was used for TiO2 deposition. Compact layer passivation can improve DSSC performance by decreasing carrier losses from recombination at the ITO/electrolyte interface and improving the electrical contact between the ITO and the TiO2 photo-electrode. The optimum thickness of the compact layer was found to be 48 nm, which resulted in a 50 % increase in the conversion efficiency compared with cells without compact layers. The conversion efficiency can be increased from 3.55 to 5.26 %. Therefore, the LPD-TiO2 compact layer inhibits the dark current and increases the short-circuit current density effectively.