期刊
ACS APPLIED MATERIALS & INTERFACES
卷 4, 期 11, 页码 6211-6215出版社
AMER CHEMICAL SOC
DOI: 10.1021/am301812d
关键词
dye-sensitized solar cells; hole transport materials; triarylamines; triisopropylsilyl ether functionalization; photovoltage
资金
- Canadian Foundation for Innovation (CFI)
- Natural Sciences and Engineering Research Council of Canada (NSERC), York University
- University of Toronto
- Bert Wasmund Fellowship
- Hatch Scholarship for Sustainable Energy Research
A new class of triarylamine compound functionalized with bulky triisopropylsilyl ether (-OTIPS) groups is used as a hole transport material in dye-sensitized solar cells (DSSCs). Using both optical and photoelectro-chemical techniques, we compared the performance of this compound with that of a parent compound containing methyl ethers as well as the conventional I-3(-)/I- redox couple. DSSCs fabricated with the triisopropylsilyl ether-substituted triarylamine exhibited high open circuit potentials (V-oc > 0.9 V on average) and efficiencies of up to 1.9%. However, cells fabricated with triarylamine containing methyl ethers performed very poorly, pointing to the Importance of -OTIPS in the overall performance of this material.
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