Photoelectrochemical properties of Langmuir-Blodgett films of two squaraine derivatives

被引：6

作者：

Lang, AD ^{[1
]}

Huang, CH

Gan, LB

Zhou, DJ

Ashwell, GJ

机构：

[1] Beijing Univ, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China

[2] Cranfield Univ, Ctr Mol Elect, Cranfield MK43 0AL, Beds, England

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 1999年 / 1卷 / 10期

关键词：

D O I：

10.1039/a900268e

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Photocurrent generation from Langmuir-Blodgett (LB) overlays on indium tin oxide (ITO) electrodes, where the active components are 2,4-bis[4-(dibutylamino)-2-hydroxyphenyl]squaraine (1) and the unsubstituted analogue, 2,4-bis[4-(dibutylamino)phenyl]squaraine (2), have been investigated. Dye 1 shows improved behaviour compared with the latter and differences in performance are attributed to a modified aggregate structure, this being indicated by variations in the LB film spectra. The photocurrent generation is enhanced by the presence of electron accepters, e.g. N,N'-dimethyl-4,4'-bipyridinium diiodide (MV2+), but quenched by electron donors, e.g. hydroquinone (HQ). The concentration dependence is reported.

引用

页码：2487 / 2490

页数：4

共 25 条

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