Picosecond time-resolved photoluminescence of PPV derivatives

被引：115

作者：

Samuel, IDW

Rumbles, G

Collison, CJ

Friend, RH

Moratti, SC

Holmes, AB

机构：

[1] UNIV LONDON IMPERIAL COLL SCI TECHNOL & MED,DEPT CHEM,LONDON SW7 2AY,ENGLAND

[2] UNIV CAMBRIDGE,CAVENDISH LAB,CAMBRIDGE CB3 0HE,ENGLAND

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

来源：

SYNTHETIC METALS | 1997年 / 84卷 / 1-3期

关键词：

photoluminescence; time-resolved fast spectroscopy; poly(phenylene vinylene) and derivatives;

D O I：

10.1016/S0379-6779(97)80837-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report some time-resolved luminescence measurements on the conjugated polymer, MEH-PPV, that show a marked dependence on the intensity of the excitation light. At low laser powers the excited state lifetime is longer than has been reported previously and is consistent with emission from an interchain excitation that has low oscillator strength and hence a long natural radiative lifetime. We rationalise these data with a simple scheme that summarises the excited state kinetics in this and other conjugated, electroluminescent polymers.

引用

页码：497 / 500

页数：4

共 20 条

[1]

[Anonymous], 1986, Handbook of Conducting Polymers

[2]

BASSLER H, 1989, OPTICAL TECHNIQUES C, P181

[3]

Bredas J. L., 1991, CONJUGATED POLYM

[4] LIGHT-EMITTING-DIODES BASED ON CONJUGATED POLYMERS [J].

BURROUGHES, JH ;

BRADLEY, DDC ;

BROWN, AR ;

MARKS, RN ;

MACKAY, K ;

FRIEND, RH ;

BURN, PL ;

HOLMES, AB .

NATURE, 1990, 347 (6293) :539-541

[5] PHOTOEXCITATION IN CONJUGATED POLYMERS [J].

FRIEND, RH ;

BRADLEY, DDC ;

TOWNSEND, PD .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1987, 20 (11) :1367-1384

[6] MEASUREMENT OF ABSOLUTE PHOTOLUMINESCENCE QUANTUM EFFICIENCIES IN CONJUGATED POLYMERS [J].

GREENHAM, NC ;

SAMUEL, IDW ;

HAYES, GR ;

PHILLIPS, RT ;

KESSENER, YARR ;

MORATTI, SC ;

HOLMES, AB ;

FRIEND, RH .

CHEMICAL PHYSICS LETTERS, 1995, 241 (1-2) :89-96

[7] EXCITON DYNAMICS IU ELECTROLUMINESCENT POLYMERS STUDIED BY FEMTOSECOND TIME-RESOLVED PHOTOLUMINESCENCE SPECTROSCOPY [J].

HAYES, GR ;

SAMUEL, IDW ;

PHILLIPS, RT .

PHYSICAL REVIEW B, 1995, 52 (16) :11569-11572

[8] PICOSECOND HOPPING RELAXATION IN CONJUGATED POLYMERS [J].

LEMMER, U ;

MAHRT, RF ;

WADA, Y ;

GREINER, A ;

BASSLER, H ;

GOBEL, EO .

CHEMICAL PHYSICS LETTERS, 1993, 209 (03) :243-246

[9]

LEMMER U, 1993, APPL PHYS LETT, V62, P28287

[10] OPTICAL PROBES OF EXCITED-STATES IN POLY(P-PHENYLENEVINYLENE) [J].

LENG, JM ;

JEGLINSKI, S ;

WEI, X ;

BENNER, RE ;

VARDENY, ZV ;

GUO, F ;

MAZUMDAR, S .

PHYSICAL REVIEW LETTERS, 1994, 72 (01) :156-159

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