標題: | Optical properties of nanosize aggregation of phenylene vinylene oligomers |
作者: | Nguyen, TP Yang, SH Gomes, J Wong, MS 應用化學系 Department of Applied Chemistry |
關鍵字: | PPV oligomers;photoluminescence;Raman scattering;nanosize |
公開日期: | 15-八月-2005 |
摘要: | In this paper, we report the experimental results on the optical properties of oligo-phenylene vinylenes (OPVs) formed in nanosize pores of porous silicon substrates. Strong modifications of the photoluminescence properties of nanosize aggregation of OPVs were observed at room temperature, such as a blue shift of the PL spectra, whereas the structure of the oligomers is preserved as proved by Raman scattering experiments. However, the penetration of the oligomers into the nanopores was found to depend on the conformation of the chains, which is, in turn, conditioned by the solvents, used to dissolve the oligomer powder. (C) 2005 Published by Elsevier B.V. |
URI: | http://dx.doi.org/10.1016/j.synthmet.2005.05.008 http://hdl.handle.net/11536/13399 |
ISSN: | 0379-6779 |
DOI: | 10.1016/j.synthmet.2005.05.008 |
期刊: | SYNTHETIC METALS |
Volume: | 151 |
Issue: | 3 |
起始頁: | 269 |
結束頁: | 274 |
顯示於類別: | 期刊論文 |