NDLI: Hierarchical SnO 2 @ SnS 2 Counter Electrodes for Remarkable High-ef fi ciency Dye-sensitized Solar Cells

Content Provider	Semantic Scholar
Author	Cui, Xiaodan Xu, Wangwang Xie, Zhiqiang Wang, Ying
Copyright Year	2015
Abstract	A hierarchical SnO2@SnS2 core-shell nanostructure has been prepared by in situ surface sulfurization of hollow SnO2 sphere via a facile two-step solution-based method and used as a substitute for conventional Pt counter electrode (CE) for dye-sensitized solar cells (DSSCs) for the first time. The resulted semitransparent SnO2@SnS2 CEs demonstrate a high electrical conductivity and excellent catalytic activity, which are attributed to the synergetic effect of each component in such hierarchical nanostructure. The hierarchical SnO2@SnS2 CE achieves an impressive photovoltaic conversion efficiency (PCE) of 8.08%, which is significantly higher than those of individual SnO2 (5.26%) and SnS2 (6.00%) and also higher than Pt (7.88%) by 2.5%. This study suggests that the inexpensive hierarchical SnO2@SnS2 CE is a good alternative to the expensive Pt CE in DSSCs. ã 2015 Elsevier Ltd. All rights reserved.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://sites01.lsu.edu/faculty/wang/wp-content/uploads/sites/39/2016/01/1_SnO2@SnS2-DSSC_EA_2015.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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