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本文制备了一种由N,N?-1,5-戊二基双月桂酰胺和4-(Boc-氨基甲基)吡啶作为共胶凝剂的新型超分子凝胶电解质,并将其应用于准固态染料敏化太阳电池(QS-DSSC)中.通过偏光显微镜观察超分子凝胶电解质和由N,N?-1,5-戊二基双月桂酰胺制备的单组份凝胶电解质微观形貌的差异,并通过调制光电流谱/调制光电压谱(IMPS/IMVS)来研究两种凝胶电解质体系中的电子传输/复合动力学过程.结果表明,单组份凝胶电解质中的网络结构是由棒状纤维构成,而在超分子凝胶电解质中出现分叉纤维结构;与单组份凝胶电解质组装的QS-DSSC相比,基于超分子凝胶电解质的QS-DSSC内部电子传输更快且电子在Ti O2/电解质界面处的复合速率更慢.最终,基于超分子凝胶电解质的QS-DSSC获得了7.04%的光电转换效率,高于基于单组份凝胶电解质的QS-DSSC的光电转换效率(6.59%).
A novel supramolecular gel electrolyte prepared by using N, N? -1,5-pentanediylbislauricamide and 4- (Boc-aminomethyl) pyridine as co-gelling agent was prepared and applied to In a solid-state dye-sensitized solar cell (QS-DSSC), the microstructure of the supramolecular gel electrolyte and the one-component gel electrolyte prepared from N, N-1,5-pentanediylbislauramide The differences of the electron transport / recombination kinetics in the two gel electrolyte systems were investigated by means of modulated photocurrent / modulated photovoltage spectroscopy (IMPS / IMVS). The results show that the network in the one-component gel electrolyte The structure is composed of rod-like fibers, while the bifurcated fiber structure appears in the supramolecular gel electrolyte. Compared with QS-DSSC with one-component gel electrolyte, the electron transfer of QS-DSSC based on supramolecular gel electrolyte Fast and electrons recombination at the Ti O2 / electrolyte interface was slower.Finally, QS-DSSC based on supramolecular gel electrolyte achieved 7.04% photoelectric conversion efficiency, higher than QS-DSSC based on one-component gel electrolyte Of the photoelectric conversion efficiency (6.59%).