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Chemcial Industry and Engineering 2016, Vol. 33 Issue (4) :85-90    DOI: 10.13353/j.issn.1004.9533.20141103
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Preparation of TiO2 Compact Layers for Use in Dye-Sensitized Solar Cells
Yang Yanbo, Feng Yaqing, Peng Xiao, Meng Shuxian, Zhang Bao
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

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Abstract 

Compact layers used to prevent the electron recombination are introduced onto the fluorine-doped tin oxide(FTO)glass by a spin-coating method. Dodecylamine hydrochloride as morphology control agent for the synthesis of 8-10 nm TiO2 compact layer particles via sol-gel method is developed. The short-circuit current density (Jsc) and solar energy conversion efficiency (η) are improved by 15.1% and 25.6%, respectively, after introducing the compact layers to DSSCs from our prepared TiO2 sol via the spin-coating method, and no significant changes observed in the open-circuit potential (Voc) relative to the traditional DSSCs without the compact layers. The remarkable improvements of Jsc suggest that such compact TiO2 layers which functioned as blocking layers are effective in suppressing the recombination process between the redox electrolyte and the conductive FTO surface.

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Articles by authors
Yang Yanbo
Feng Yaqing
Peng Xiao
Meng Shuxian
Zhang Bao
KeywordsDSSC;   TiO2 compact layer;   FTO/TiO2 electrode;   recombination     
Received 2014-05-03;
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Yang Yanbo, Feng Yaqing, Peng Xiao, Meng Shuxian, Zhang Bao.Preparation of TiO2 Compact Layers for Use in Dye-Sensitized Solar Cells[J]  Chemcial Industry and Engineering, 2016,V33(4): 85-90
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