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以N-苯基咔唑为电子给体,苯并噻二唑为辅助电子受体,噻吩或苯为π桥,氰乙酸或罗丹宁乙酸为键合受体,设计合成了四个N-苯基咔唑类染料敏化剂.对所合成的染料敏化剂的光谱性能和光电转换性能进行了研究.以氰乙酸为受体的染料敏化剂尽管最大吸收波长和摩尔吸光系数较以罗丹宁乙酸为受体的染料敏化剂低,但由于其电子注入效率高,导致其光电流和光电压均较优.以苯环为桥键的染料敏化剂较以噻吩环为桥键的染料敏化剂具有更好的光电流和光电压,因此四种染料敏化剂中,以苯基作为桥键,氰基乙酸作为受体的染料敏化剂获得较佳的光电转换效率5.28%(J_(SC)=9.14 mA/cm~2,V_(OC)=0.74 V,FF=0.78).
Using N-phenylcarbazole as electron donor, benzothiadiazole as auxiliary electron acceptor, thiophene or benzene as π bridge, cyanoacetic acid or rhodanine as bonding acceptor, four N-benzene Based carbazole dye sensitizer.The spectral properties and photoelectric conversion properties of the synthesized dye sensitizer were studied.Dye sensitizers with cyanoacetic acid as acceptor, although the maximum absorption wavelength and molar absorptivity than the rhodan The dye sensitizer with rather acetic acid as acceptor is low, but because of its high electron injection efficiency, its photocurrent and photo voltage are better.Dye sensitizers with benzene ring as bridge are more effective than dyes with thiophene ring as bridge Sensitizers have better photocurrent and photovoltage, so the four dye sensitizers, the phenyl as a bridge, cyanoacetic acid as a dye sensitizer to obtain a better photoelectric conversion efficiency of 5.28% (J_ (SC) = 9.14 mA / cm 2, V OC = 0.74 V, FF = 0.78).