Photophysical characterization of diphenyl-substituted phenylenevinylene and diphenylenevinylene polymers

被引:26
作者
Holzer, W
Penzkofer, A
Stockmann, R
Meysel, H
Liebegott, H
Hörhold, HH
机构
[1] Univ Regensburg, Inst Expt & Angew Phys 2, D-93040 Regensburg, Germany
[2] Univ Jena, Inst Organ Chem & Makromol Chem, D-07743 Jena, Germany
[3] INNOVENT Technologieentwicklung eV, D-07745 Jena, Germany
关键词
luminescent polymers; phenylenevinylene polymers; diphenylenevinylene polymers;
D O I
10.1016/S0032-3861(00)00522-X
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Neat films and solutions of poly[1,4-phenylene-1,2-di(4-phenoxyphenyl)vinylene], poly[1,4-phenylene-1,2-di(phenthiophenyl)vinylene], poly[4,4'-diphenylene-1,2-di(4-phenoxyphenyl)vinylene] and poly [4,4'-diphenylene-1,2-di(4-fluorophenyl)vinylene] in 1,4-dioxane are investigated. The optical constants of the neat films are determined, absorption and fluorescence data are analysed, and picosecond laser saturable absorption studies are carried out. The fluorescence lifetimes and fluorescence quantum yields are analysed to determine the emitting chromophore size (electronic delocalization). The saturable absorption measurements are used to determine the average absorption segment size. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:3183 / 3194
页数:12
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