含双吸电子基团的三苯胺染料在太阳电池中的应用

doi:10.1016/S1872-1508(08)60077-7

Acta Phys. -Chim. Sin. ›› 2008, Vol. 24 ›› Issue (11): 1950-1956.doi: 10.1016/S1872-1508(08)60077-7

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Application of Triphenylamine-Based Sensitizers with Two Carboxylic Acid Groups to Dye-Sensitized Solar Cells

PEI Juan, LIANG Mao, CHEN Jun, TAO Zhan-Liang, XU Wei

Tianjin Key Laboratory of Energy Material Chemistry, Institute of New Energy Material Chemistry, Nankai University, Tianjin 300071, P. R. China

Received:2008-05-25 Revised:2008-07-03 Published:2008-11-10
Contact: CHEN Jun E-mail:chenabc@nankai.edu.cn

Abstract

Abstract: Two triphenylamine-based dyes (TPAR3 and TPAR6) containing two carboxylic acid groups with different conjugated lengths were synthesized and characterized with regard to their photophysical and photoelectrochemical properties. Experimental results showed that the λmax of TPAR6 either in methanol solution or on TiO2 filmwas red-shifted and broadened by extending the π-conjugated bridge. However, the performance of TPAR3-based dye-sensitized solar cell (DSC) was superior to that of TPAR6. This reason was due to the serious self-quenching of the electronically excited state in TPAR6 molecule, resulting from its cis-trans isomerization. The effects of addition of guanidine thiocyanate (GT) in the electrolyte on the performance of DSCs based on TPAR3 were also investigated, revealing a maximum energy conversion efficiency of 4.02%at 0.100 mol·L-1 GT.

Key words: Triphenylamine dye, Guanidine thiocyanate, Solar cell, Photoelectric conversion

MSC2000:

O644

PEI Juan, LIANG Mao, CHEN Jun, TAO Zhan-Liang, XU Wei. Application of Triphenylamine-Based Sensitizers with Two Carboxylic Acid Groups to Dye-Sensitized Solar Cells[J].Acta Phys. -Chim. Sin., 2008, 24(11): 1950-1956.

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Application of Triphenylamine-Based Sensitizers with Two Carboxylic Acid Groups to Dye-Sensitized Solar Cells

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