標題: Effects on Oxidation Waves of Conjugated Polymers by Studying Photoluminescence Quenching and Electrogenerated Chemiluminescence
作者: Chen, Jiun-Tai
Chang, Ya-Lan
Fabian, Omar
Guo, Song
Lackowski, William M.
Barbara, Paul F.
應用化學系
Department of Applied Chemistry
公開日期: 26-May-2011
摘要: We study the electrochemical oxidation waves of conjugated polymers by examining photoluminescence (PL) quenching and electrogenerated chemiluminescence (ECL) of poly(9,9-dioctylfluorene-co-benzothiadiazole) (F8BT). Different factors such as the anion concentration, the anion size, the electrochemical potential, and the coreactant concentration are investigated for their effects on the behavior of the oxidation waves. Our results show that the wave speeds of PL quenching or ECL can be increased by increasing the anion concentration, decreasing the anion size, or increasing the electrochemical potentials. In addition, the intensity of ECL can be controlled by the coreactant concentration. The transition from pinned to free ECL waves is also studied when an intermediate coreactant concentration is used. These results provide useful insights for understanding the electrochemical oxidation wave phenomenon.
URI: http://dx.doi.org/10.1021/jp201577s
http://hdl.handle.net/11536/8839
ISSN: 1932-7447
DOI: 10.1021/jp201577s
期刊: JOURNAL OF PHYSICAL CHEMISTRY C
Volume: 115
Issue: 20
起始頁: 10256
結束頁: 10263
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