External electric field effects on the fluorescence of methylene-linked pyrene and N,N-dimethylaniline doped in a PMMA polymer film

被引：21

作者：

Ohta, N ^{[1
]}

Kanada, T

Yamazaki, I

Itoh, M

机构：

[1] Hokkaido Univ, Grad Sch Engn, Dept Mol Chem, Sapporo, Hokkaido 060, Japan

[2] Kanazawa Univ, Grad Sch, Dept Phys & Chem Biodynam, Kanazawa, Ishikawa 920, Japan

[3] Kanazawa Univ, Fac Pharmaceut Sci, Kanazawa, Ishikawa 920, Japan

来源：

CHEMICAL PHYSICS LETTERS | 1998年 / 292卷 / 4-6期

关键词：

D O I：

10.1016/S0009-2614(98)00707-6

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：

Fluorescence emitted from the pyrene chromophore is quenched by an electric field and both intra- and intermolecular electron transfer processes from N, N-dimethylaniline (DMA) to the excited state of pyrene are suggested as being enhanced by an electric field in a methylene-linked compound of pyrene and DMA doped in a PMMA polymer film. Exciplex fluorescence, which appears as a result of photoinduced electron transfer, shows field-induced enhancement and quenching, depending on the concentration. Quenching of the exciplex fluorescence observed at high concentrations is attributed to a photocarrier generation. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：535 / 541

页数：7

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