基于氟代喹喔啉D-A型共轭聚合物的合成及其光电性能
Chinese Journal of Synthetic Chemistry(2015)
Abstract
分别以噻吩、联二噻吩和三联噻吩为给体单元,氟代噻吩基喹喔啉为受体单元,通过Stille反应合成了三种新型的聚合物太阳电池材料(PT-TFQ,PTT-TFQ和PTTT-TFQ),其结构经1H NMR表征.研究了不同给电子能力的结构单元对其UV-Vis谱光谱、电化学性质以及光伏性能的影响.结果表明,PT-TFQ,PTT-TFQ和PTTT-TFQ氯仿溶液的最大吸收峰分别位于545 nm,578 nm和649 nm,而薄膜的最大吸收峰相对于溶液的吸收峰分别红移了81 nm,97 nm和44nm;PT-TFQ,PTT-TFQ和PTTT-TFQ的开路电压依次降低,分别为0.86 V,0.60V和0.50 V;基于三者的器件效率分别为3.19%,3.10%和2.63%.
MoreKey words
thiophene,quinoxaline,conjugated polymer,synthesis,polymer solar cell
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