期刊
POLYMER
卷 49, 期 9, 页码 2197-2201出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2008.03.016
关键词
poly(thiophene)s; nanocomposite materials; photoluminescence
Poly[3-(2-methoxyphenyl)thiophene] (PMP-Th) nanowires confined in the nano-channels of porous anodic alumina (PAA) membranes were first prepared through electrochemical deposition in cyclic voltammetry and investigated by photoluminescence (PL) spectroscopy. The morphologies and molecular structures of PMP-Th/PAA nanocomposites were studied with electron microscopy and FT-IR. The maximum absorption in UV-vis spectrum of the PMP-Th/PAA nanocomposites was located at 400450 nm. The photoluminescence spectra show that the nanocomposites have green luminescence bands with the peaks at 560-570 nm. Compared to the electropolymerized PMP-Th film, the PMP-Th nanowires confined in the nano-channels of PAA membranes exhibit obvious blue-shifts in luminescent spectra and great enhancements in photoluminescence intensity. Further spectral analyses suggest that the PL enhancement could be attributed to Forster energy transfer from oxygen vacancies in PAA to PMP-Th molecules. (C) 2008 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据