Photophysical studies on the mono- and dichromophoric hemicyanine dyes   I. Photoelectric conversion from the dye modified ITO electrodes

doi:10.1021/jp020876n

CORC > 北京大学 > 化学与分子工程学院

	Photophysical studies on the mono- and dichromophoric hemicyanine dyes I. Photoelectric conversion from the dye modified ITO electrodes
	Huang, YY ; Cheng, TR ; Li, FY ; Huang, CH ; Hou, TJ ; Yu, AC ; Zhao, XS ; Xu, XJ
刊名	journal of physical chemistry b
	2002
关键词	LANGMUIR-BLODGETT-FILMS INTRAMOLECULAR CHARGE-TRANSFER 2ND HARMONIC-GENERATION 2ND-HARMONIC GENERATION OPTICAL NONLINEARITIES MOLECULAR-ORIENTATION MONOLAYERS FLUORESCENCE AGGREGATION BEHAVIOR
DOI	10.1021/jp020876n
英文摘要	Stilbazolium dimers were designed and synthesized in which methylene groups of different lengths link the two chromophores. The second-order nonlinear optical property has been detected from their Langmuir-Blodgett monolayers. Photocurrent generation as well as other photophysical properties such as absorption and fluorescence were investigated. Comparing the dimers, with the stilbazolium monomer, we found strong second harmonic generation (SHG) signals and remarkable enhanced photoelectric conversion (PEC) quantum yields from 1.3-Bis [(E)- 4-(2-(4-(N-methyl, N-octadecylamino) phenyl) ethenyl) pyridinyll-alkane dibromide (B3) and 1,5-Bis [(E)- 4-(2-(4-(N-methyf, N-octadecylamino) phenyl) ethenyl) pyridinyll-ulkane dibromide (135). The structures of the Langmuir-Blodgett films of these dyes are assumed. Although these dimers are center-symmetric (or quasi-center-symmetric) molecules, they can form the ordered non-center-symmetric (in normal direction) monolayer by the compress force and the molecular interaction between the amphiphilic dye molecules and the water molecules at the air/water interface, The influences of bias, donor/acceptor, soluble oxygen, and light intensity to photocurrent generation were studied our results provide a new perspective to improve the performance of functional molecular material without any change Of the chemical structure of the chromophore itself.; Chemistry, Physical; SCI(E); EI; 26; ARTICLE; 39; 10020-10030; 106
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/257999]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Huang, YY,Cheng, TR,Li, FY,et al. Photophysical studies on the mono- and dichromophoric hemicyanine dyes I. Photoelectric conversion from the dye modified ITO electrodes[J]. journal of physical chemistry b,2002.
APA	Huang, YY.,Cheng, TR.,Li, FY.,Huang, CH.,Hou, TJ.,...&Xu, XJ.(2002).Photophysical studies on the mono- and dichromophoric hemicyanine dyes I. Photoelectric conversion from the dye modified ITO electrodes.journal of physical chemistry b.
MLA	Huang, YY,et al."Photophysical studies on the mono- and dichromophoric hemicyanine dyes I. Photoelectric conversion from the dye modified ITO electrodes".journal of physical chemistry b (2002).