Interface modification effects of 4-tertbutylpyridine interacting with N3 molecules in quasi-solid dye-sensitized solar cells
Interface modification effects of 4-tertbutylpyridine interacting with N3 molecules in quasi-solid dye-sensitized solar cells
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DOI：
10.1039/c0cp02820g
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发表时间：
2011-01-01
影响因子：
3.3
通讯作者：
Qiu, Yong
中科院分区：
文献类型：
--
作者：
Gao, Rui;Wang, Liduo;Qiu, Yong
本文讨论了4-叔丁基吡啶（TBP）的界面改性作用，特别是与染料分子的相互作用。 FTIR 结果表明，TBP 除了与 TiO(2) 膜相互作用外，还与染料分子相互作用。 N3与TBP之间通过N3-COOH基团中的H原子与TBP的N原子的相互作用力发生反应，可以延缓染料分子的聚集，减少电子猝灭和电荷复合。此外，循环伏安图和紫外-可见吸收边的结果表明，TBP和染料分子之间的相互作用会导致染料分子的能级发生变化，从而影响DSC中的电子注入效率。 IPCE结果表明，TBP改性后，注入效率降低，但电子收集效率提高。
In this paper, the interface modification effects of 4-tertbutylpyridine (TBP), especially the interaction with dye molecules, were discussed. The results of FTIR showed that TBP interacted with dye molecules, in addition to its interaction with the TiO(2) film. Reaction between N3 and TBP by the interaction force of the H atom in the -COOH group of N3 and the N atom of TBP could retard the aggregation of dye molecules, decreasing the electron quenching and charge recombination. Furthermore, the results of cyclic voltammograms and UV-vis absorption edge revealed the interaction between TBP and dye molecules could cause the energy level of the dye molecules to change, influencing the electron injection efficiency in DSCs. The IPCE results indicated that with TBP modification, the injection efficiency decreased, but the electron collection efficiency was enhanced.