Journal
CHEMSUSCHEM
Volume 8, Issue 5, Pages 817-820Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201403343
Keywords
catalysis; dye-sensitized solar cells; electron transfer; energy conversion; silver
Funding
- National Natural Science Foundation of China [21371121, 21331004]
- SKLMMC of SJTU [mmc-kf14-09]
- Shanghai Nano-Project [12nm0504300]
- Minhang District Developing Project
- US-Pakistan Joint Science and Technology program
- NASA EPSCoR program [NNX13AD31A]
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Well-defined uniform pyramidal Ag-Ag8SnS6 heterodimers are prepared via a one-pot method. A plausible formation mechanism for the unique structures based on a seed-growth process and an etching effect due to oleylamine is proposed. The formed metal-semiconductor Mott-Schottky heterojunction promotes electron transfer from semiconducting Ag8SnS6 to metallic Ag, which catalyzes the reduction of I-3(-) to I-. When used as counter electrode in dye-sensitized solar cells, the heterodimers show comparable performance to platinum.
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