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Citation: Yao Qiao-Hong, Shan Lu, Li Fu-You, Yin Dong-Dong, Huang Chun-Hui. The Photoelectrochemical Properties of Four Hemicyanine Derivatives on Nanocrystalline TiO₂ Electrode[J]. Acta Physico-Chimica Sinica, ;2003, 19(07): 635-640. doi: 10.3866/PKU.WHXB20030714 shu

The Photoelectrochemical Properties of Four Hemicyanine Derivatives on Nanocrystalline TiO₂ Electrode

1.
State Key Laboratory of Rare Earth Material Chemistry and Applications,Peking University, Beijing　100871; 1Department of Chemistry, Beijing Normal University, Beijing　100875

Received Date: 24 December 2002
Available Online: 15 July 2003

Four hemicyanine derivatives, (E)-N-(4-sulfobutyl)-4-[2-(4-N, N-dimethylamino- phenyl) ethenyl] pyridinium(P1), (E)-N-(4-sulfobutyl)-4-[2-(4-N, N-dimethylaminophenyl)-1,3- butenyl]pyridinium(P2), (E)-N-(4-sulfobutyl)-4-[2-(4-N,N-dimethylaminophenyl)ethenyl] quinol- inium (Q1) and (E)-N-(4-sulfobutyl)-4- [2-(4-N,N- dimethylaminophenyl)-1,3- butenyl] quinolinium(Q2), with different conjugated bridge and acceptor groups, have been synthesized and characterized with regard to their photophysical and photoelectrochemical properties. Experiments show that with extended π-conjugation bridge, the λmax of P2 and Q2 both red shifted and their absorption spectra broadened, which is advantageous for photoelectric conversion. Photoelectric properties of the four dye sensitized TiO2 electrodes were investigated in standard two-electrode system, and the data obtained show that Q1 has the best photo-to-electron conversion among the four dyes.
- Nanocrystalline TiO₂ electrode;Hemicyanine dye; Photoelectric conversion
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1.
沈阳化工大学材料科学与工程学院沈阳 110142

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The Photoelectrochemical Properties of Four Hemicyanine Derivatives on Nanocrystalline TiO2 Electrode

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通讯作者: 陈斌, bchen63@163.com

The Photoelectrochemical Properties of Four Hemicyanine Derivatives on Nanocrystalline TiO₂ Electrode