azo-sulfonamides;
trans-cis isomerisation;
Langmuir-Blodgett films on ITO;
photocurrent generation;
D O I:
10.1016/S0927-7757(01)00967-0
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:
Trans-cis isomerisation of the azo-sulfonamide derivatives: 4-(N-methyl-N-n-dodecyl)amino-4'-(N-thiazol-2-yl)sulfonamidoazobenzene, 4-(N-methyl-N-n-dodecyl)amino-4'-(N-pyrimidin-2-yl)sulfonamidoazobenzene, and 4-(N-methyl-N-n-dodecyl)amino-4'-[N-(2-methyl)isoxazol-2-yl]sulfonamidoazobenzene and photocurrent generation in Langmuir-Blodgett (LB) films was investigated. The isomerisation took place on illumination with a light beam corresponding to the absorption band, The reverse cis-trans isomerisation proceeded as a thermal relaxation. It was observed that the LB films deposited during illumination of the trough were more effective in this photoreaction. The LB structures deposited onto conductive ITO glass were able to generate photocurrent in a standard three-electrode system. The photocurrent intensity was in linear relationship with bias voltage in the range from 0 to -0.35 V and in best conditions it reached 160 nA cm(-2). (C) 2002 Elsevier Science B.V. All rights reserved.
机构:
Beijing Univ, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R ChinaBeijing Univ, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China
Lang, AD
Huang, CH
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机构:Beijing Univ, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China
Huang, CH
Gan, LB
论文数: 0引用数: 0
h-index: 0
机构:Beijing Univ, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China
Gan, LB
Zhou, DJ
论文数: 0引用数: 0
h-index: 0
机构:Beijing Univ, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China
Zhou, DJ
Ashwell, GJ
论文数: 0引用数: 0
h-index: 0
机构:Beijing Univ, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China
机构:
Beijing Univ, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R ChinaBeijing Univ, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China
Lang, AD
Huang, CH
论文数: 0引用数: 0
h-index: 0
机构:Beijing Univ, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China
Huang, CH
Gan, LB
论文数: 0引用数: 0
h-index: 0
机构:Beijing Univ, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China
Gan, LB
Zhou, DJ
论文数: 0引用数: 0
h-index: 0
机构:Beijing Univ, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China
Zhou, DJ
Ashwell, GJ
论文数: 0引用数: 0
h-index: 0
机构:Beijing Univ, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China