期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 135, 期 31, 页码 11529-11532出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja406538a
关键词
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资金
- ANSER Center, an Energy Frontier Research Center
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001059]
- Thailand's Commission on Higher Education
- DOE EERE
- DOE [E-AC05-060R23100]
Detachment (desorption) of molecular dyes from photoelectrodes is one of the major limitations for the long-term operation of dye-sensitized solar cells. Here we demonstrate a method to greatly inhibit this loss by growing a transparent metal oxide (TiO2) on the dye-coated photoelectrode via atomic layer deposition (ALD). TiO2-enshrouded sensitizers largely resist detachment, even in pH 10.7 ethanol, a standard solution for intentional removal of molecular dyes from photoelectrodes. Additionally, the ALD post-treatment renders the otherwise hydrophobic dye-coated surface hydrophilic, thereby enhancing photoelectrode pore-filling with aqueous solution.
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