MEASUREMENT OF ABSOLUTE PHOTOLUMINESCENCE QUANTUM EFFICIENCIES IN CONJUGATED POLYMERS

被引：784

作者：

GREENHAM, NC

SAMUEL, IDW

HAYES, GR

PHILLIPS, RT

KESSENER, YARR

MORATTI, SC

HOLMES, AB

FRIEND, RH

机构：

[1] PHILIPS RES LABS,5656 AA EINDHOVEN,NETHERLANDS

[2] MELVILLE LAB POLYMER SYNTH,CAMBRIDGE CB2 3RA,ENGLAND

来源：

CHEMICAL PHYSICS LETTERS | 1995年 / 241卷 / 1-2期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1016/0009-2614(95)00584-Q

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：

Measurements of absolute photoluminescence (PL) efficiencies have been performed for solid films of several conjugated polymers commonly used for electroluminescence. In poly(p-phenylenevinylene) (PPV), a PL efficiency of 0.27 is measured in samples which show an initial PL decay time-constant of 320 ps. These values indicate that photoexcitation in PPV produces intra-chain singlet excitons with a high quantum yield. The PL efficiencies of derivatives of PPV have been investigated, and efficiencies in excess of 0.4 have been measured for cyano-substituted PPVs.

引用

页码：89 / 96

页数：8

共 32 条

[1]

[Anonymous], 1974, IN PRESS, DOI DOI 10.1016/S0079-6638(08)70266-X

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