期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 134, 期 1, 页码 23-26出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja206929s
关键词
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资金
- National Science Foundation [DMR-0906745]
- Center for Energy Nanoscience, an Energy Frontier Research Center
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001013]
- Research Corporation for Science Advancement
A new wurtzite phase of copper tin selenide (CTSe) was discovered, and the resulting nanocrystals were synthesized via a facile solution-phase method. The wurtzite CTSe nanocrystals were synthesized with dodecylamine and 1-dodecanethiol as coordinating solvents and di-tert-butyl diselenide ((Bu2Se2)-Bu-t) as the selenium source. Specific reaction control (i.e., a combination of 1-dodecanethiol with (Bu2Se2)-Bu-t) was proven to be critical in order to obtain this new phase of CTSe, which was verified by powder X-ray diffraction and selected area electron diffraction. The wurtzite CTSe nanocrystals possess an optical and electrochemical band gap of 1.7 eV and display an electrochemical photoresponse indicative of a p-type semiconductor.
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