標題: Electrogenerated Chemiluminescence of Conjugated Polymer Films from Patterned Electrodes
作者: Guo, Song
Fabian, Omar
Chang, Ya-Lan
Chen, Jiun-Tai
Lackowski, William M.
Barbara, Paul F.
應用化學系
Department of Applied Chemistry
公開日期: 10-Aug-2011
摘要: A new phenomenon is presented in which electrogenerated chemiluminescence (ECL) is generated and propagates laterally as self-reinforcing waves as a result of the oxidation of a poly(9,9-dioctylfluorene-co-benzothiadiazole) thin film. In an ordered array of Au electrode posts that act as effective ECL nucleation sites, soliton-like waves were observed to expand from each site and annihilate upon collision with each other. Simulations of the ECL response supported the experimental observations that the ECL waves propagate at a constant speed. A correlated diffusion mechanism involving the correlated motion of ions, injected holes, and solvent molecules is proposed to interpret the experimental data qualitatively. A rapid increase in the diffusion coefficient of these species in the polymer results in a sharp interface between non-oxidized and oxidized polymer phases wherein the electrochemical (EC) oxidation and mass transport of all pertinent species take place. EC oxidation of conjugated polymers of this type has important implications for the understanding of these materials and their modes of operation in EC conjugated polymer devices.
URI: http://dx.doi.org/10.1021/ja200123b
http://hdl.handle.net/11536/20396
ISSN: 0002-7863
DOI: 10.1021/ja200123b
期刊: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume: 133
Issue: 31
起始頁: 11994
結束頁: 12000
Appears in Collections:Articles


Files in This Item:

  1. 000293768400043.pdf