Flexible organic photovoltaic devices based on oligothiophene derivatives

被引：3

作者：

Liu, Ping ^{[1
]}

Chen, Tu Hua ^{[1
]}

Pan, Wan Zhang ^{[1
]}

Huang, Ming Sheng ^{[1
]}

Deng, Wen Ji ^{[2
]}

Mai, Yu Liang ^{[3
]}

Luan, An Bo ^{[3
]}

机构：

[1] S China Univ Technol, Res Inst Mat Sci, Guangzhou 510640, Guangdong, Peoples R China

[2] S China Univ Technol, Dept Appl Phys, Guangzhou 510640, Guangdong, Peoples R China

[3] Guangdong Prov Petr Chem Inst, Guangzhou 510665, Guangdong, Peoples R China

来源：

CHINESE CHEMICAL LETTERS | 2008年 / 19卷 / 02期

基金：

中国国家自然科学基金;

关键词：

flexible organic photovoltaic device; oligothiophene derivative; OPEN-CIRCUIT VOLTAGE; TITANYL PHTHALOCYANINE; SIDE-CHAINS; SOLAR-CELLS; MORPHOLOGY;

D O I：

10.1016/j.cclet.2007.12.006

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

For the purpose of developing flexible organic photovoltaic devices, we have fabricated two flexible devices using 5-formyl-2,2':5',2 '':5 '',2 '''-quaterthiophene (4T-CHO), 5-formyl-2,2 ':5 ', 2 '':5 '',2 ''':5 ''',2 ''''-quinquethiophene (5T-CHO) and 3,4,9,10-perylenetertracarboxylic dianhydride (PTCDA). The PET-ITO/4T-CHO/PTCDA/Al device has an open circuit voltage (V-oc) of 1.56 V, photoelectric conversion efficiency of 0.77%. The PETLITO/5TLCHO/PTCDA/Al device has a V-oc of 1.70 V, photoelectric conversion efficiency of 0.84%. The two flexible devices have high V (1.56 and 1.70 V). It is possible that intermolecular hydrogen bonding between -CHO group of nT-CHO and carboxylic dianhydride of PTCDA contributes to enhancing the efficiency by promoting interfacial electron transfer and eliminating the subconducting band trap sites. (c) 2007 Ping Liu. Published by Elsevier B. V. on behalf of Chinese Chemical Society. All rights reserved.

引用

页码：207 / 210

页数：4

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