Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 134, Issue 26, Pages 10953-10958Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja303034w
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Funding
- National Basic Research Program of China [2011CB933302]
- National Natural Science Foundation of China [20971025, 90922004, 50903020]
- Shanghai Leading Academic Discipline Project [B108]
- Jiangsu Major Program [BY2010147]
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We present herein a facile one-step low-temperature hydrothermal approach for in situ growth of metal selenides (Co0.85Se and Ni0.85Se) on conductive glass substrates. The as-prepared metal selenides on conductive substrates can be used directly as transparent counter electrodes for dye-sensitized solar cells (DSSCs) without any post-treatments. It is found that graphene-like Co0.85Se exhibits higher electrocatalytic activity than Pt for the reduction of triiodide. As a consequence, the DSSC with Co0.85Se generates higher short-circuit photocurrent and power conversion efficiency (9.40%) than that with Pt.
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