New Carbazole-Based Conjugated Polymers Containing Pyridylvinyl Thiophene Units for Polymer Solar Cell Applications: Morphological Stabilization Through Hydrogen Bonding

被引：25

作者：

Hsu, So-Lin ^{[1
]}

Chen, Chia-Min ^{[1
]}

Cheng, Yu-Hsin ^{[1
]}

Wei, Kung-Hwa ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Dept Mat Sci & Engn, Hsinchu 30010, Taiwan

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2011年 / 49卷 / 03期

关键词：

conjugated polymers; phase separation; photovoltaic cells; polycarbazole; polycondensation; PHOTOVOLTAIC CELLS; SELF-ORGANIZATION; EFFICIENT;

D O I：

10.1002/pola.24465

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We have synthesized two conjugated polymers (P1, P2) containing alternating electron-donating and -accepting units, based on N-alkyl-2,7-carbazole, 4,7-di(thiophen-5-yl)-2,1,3-benzothiadiazole and 3-[2-(4-pyridyl)vinyl]thiophene units. These conjugated polymers contained different contents of pyridine units, which were incorporated to form hydrogen bonds with [6,6]-phenyl-C-61-butyric acid (PCBA). When these hydrogen bonding interactions were present in the polymer thin films, their thermal stability improved; deterioration, which occurred through aggregation of PCBA methyl ester after lengthy annealing times, was also suppressed. The power conversion efficiency of a device incorporating the film featuring hydrogen bonding interactions remained at 75% of the original value after thermal annealing for 5 h at 140 degrees C. (C) 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 49: 603-611, 2011

引用

页码：603 / 611

页数：9

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