【摘 要】
：
In dye-sensitized solar cells(DSSCs),it is essential of rational molecular designs to obtain promising photosensitizers with well-matched energy levels and narrower optical band gaps.Here we report fo
【机 构】
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Institute of Fine Chemicals,East China University of Science & Technology,Shanghai 200237,China
【出 处】
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2016第二届有机光电材料与器件国际会议
论文部分内容阅读
In dye-sensitized solar cells(DSSCs),it is essential of rational molecular designs to obtain promising photosensitizers with well-matched energy levels and narrower optical band gaps.Here we report four benzoxidazole based D-A-π-A metalfree organic dyes(WS-66,WS-67,WS-68 and WS-69)with different combination of π-spacer units and anchoring-acceptor groups.The optimal dye WS-69 shows the narrowest energy band gap,which displays a very high photocurrent density of 19.39 mA cm-2,but suffers from a relatively low photovoltage of 696 mV,along with the socalled deterious “trade-off” effect.
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