Blocking layers for nanocomposite photoanodes in dye sensitized solar cells: Comparison of atomic layer deposition and TiCl4 treatment

THIN SOLID FILMS

卷:598

Article

Manthina, Venkata¹ 

[1] Univ Connecticut, Ctr Clean Energy Engn, Storrs, CT 06269 USA

关键词: Dye sensitized solar cells;    Atomic layer deposition;    ZnO-TiO2 nanocomposites;    ZnO;    TiO2;   

DOI  :  10.1016/j.tsf.2015.11.054

来源: Elsevier

【 摘 要 】

Charge recombination at the electrode/electrolyte interface can be prevented by efficient blocking layers. Here, TiO2 blocking layers have been deposited using atomic layer deposition (ALD) and TiCl4 treatment. The number of TiO2 ALD cycles was optimized for I-/I3- and Fc/Fc(+) electrolytes. The optimized TiO2 ALD films' performance was compared with the TiCl4 treated films. TiCl4 treated films performed better than the ALD deposited films, attributed to reduction of the defects, which act as active sites of recombination. (C) 2015 Elsevier B.V. All rights reserved.

【 授权许可】

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