Substitution effects of CC triple bonds on the fluorescent properties of perylenes studied by emission and transient absorption measurements

被引：14

作者：

Yamaji, Minoru ^{[1
]}

Maeda, Hajime ^{[2
]}

Nanai, Yasuaki ^{[2
]}

Mizuno, Kazuhiko ^{[2
]}

机构：

[1] Gunma Univ, Grad Sch Engn, Dept Chem & Chem Biol, Kiryu, Gunma 3768515, Japan

[2] Osaka Prefecture Univ, Grad Sch Engn, Dept Appl Chem, Sakai, Osaka 5998531, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2012年 / 536卷

关键词：

DPI-PPI INTERACTION; CHARGE-TRANSFER; EXCITED-STATE; ELECTROLUMINESCENCE; NAPHTHALENES; BEHAVIOR; SPECTRA; SILANES; PYRENE;

D O I：

10.1016/j.cplett.2012.03.108

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Perylenes substituted with trimethylsilylethynyl, tert-butylethynyl and trimethylsilylbutadiynyl groups were prepared, and their photophysical and photochemical properties were investigated through measurements of fluorescence yields, lifetimes, and triplet-triplet absorption. Introduction of these groups caused little change in the rates of fluorescence, but decreased the fluorescence yields and substantially enhanced the rates of non-radiative processes. Observation of the triplet absorption was evident for the origin of the enhanced non-radiative process by the substitution with the triple bond(s). (C) 2012 Elsevier B. V. All rights reserved.

引用

页码：72 / 76

页数：5

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