標題: New Carbazole-Based Conjugated Polymers Containing Pyridylvinyl Thiophene Units for Polymer Solar Cell Applications: Morphological Stabilization Through Hydrogen Bonding
作者: Hsu, So-Lin
Chen, Chia-Min
Cheng, Yu-Hsin
Wei, Kung-Hwa
材料科學與工程學系
Department of Materials Science and Engineering
關鍵字: conjugated polymers;phase separation;photovoltaic cells;polycarbazole;polycondensation
公開日期: 1-Feb-2011
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
URI: http://dx.doi.org/10.1002/pola.24465
http://hdl.handle.net/11536/25845
ISSN: 0887-624X
DOI: 10.1002/pola.24465
期刊: JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
Volume: 49
Issue: 3
起始頁: 603
結束頁: 611
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