Photoluminescence decay dynamics of dendritically substituted conjugated polymers

被引：15

作者：

Jakubiak, R

Bao, Z

Rothberg, LJ

机构：

[1] Univ Rochester, Dept Chem, NSF Ctr Photoinduced Charge Transfer, Rochester, NY 14627 USA

[2] Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA

来源：

SYNTHETIC METALS | 2001年 / 116卷 / 1-3期

关键词：

photoluminescence; conjugated polymers; poly(phenylene vinylene);

D O I：

10.1016/S0379-6779(00)00511-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report subnanosecond photoluminescence (PL) decay dynamics of dendron decorated poly(phenylene vinylenes) (PPVs) in solutions and as neat films. Previous PL studies revealed that two conformations of the polymer, with distinct luminescence quantum yields and FL, are responsible for the photophysics of these polymers. These conformations are characteristic of isolated and aggregated chains. From the decay dynamics, energy transfer between the two species is evident and repopulation of exciton states occurs in aggregated regions of the sample. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

收藏

页码：41 / 44

页数：4

相关论文

共 12 条

[1] Poly(phenylenevinylene)s with dendritic side chains: Synthesis, self-ordering, and liquid crystalline properties [J].

Bao, ZN ;

Amundson, KR ;

Lovinger, AJ .

MACROMOLECULES, 1998, 31 (24) :8647-8649

[2] Stimulated emission and lasing in dye-doped organic thin films with Forster transfer [J].

Berggren, M ;

Dodabalapur, A ;

Slusher, RE .

APPLIED PHYSICS LETTERS, 1997, 71 (16) :2230-2232

[3] 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

[4] Evidence of aggregate formation for 2,5-dialkylpoly(p-phenyleneethynylenes) in solution and thin films [J].

Halkyard, CE ;

Rampey, ME ;

Kloppenburg, L ;

Studer-Martinez, SL ;

Bunz, UHF .

MACROMOLECULES, 1998, 31 (25) :8655-8659

[5] Dendritic sidegroups as three-dimensional barriers to aggregation quenching of conjugated polymer fluorescence [J].

Jakubiak, R ;

Bao, Z ;

Rothberg, L .

SYNTHETIC METALS, 2000, 114 (01) :61-64

[6] Reduction of photoluminescence quantum yield by interchain interactions in conjugated polymer films [J].

Jakubiak, R ;

Rothberg, LJ ;

Wan, W ;

Hsieh, BR .

SYNTHETIC METALS, 1999, 101 (1-3) :230-233

[7] Aggregation quenching of luminescence in electroluminescent conjugated polymers [J].

Jakubiak, R ;

Collison, CJ ;

Wan, WC ;

Rothberg, LJ ;

Hsieh, BR .

JOURNAL OF PHYSICAL CHEMISTRY A, 1999, 103 (14) :2394-2398

[8] Solvatochromic properties of poly[3-(6-methoxyhexyl)-2,5-thienylene] in different solvent mixtures [J].

Lanzi, M ;

Bizzarri, PC ;

DellaCasa, C .

SYNTHETIC METALS, 1997, 89 (03) :181-186

[9] Photophysics of phenylenevinylene polymers [J].

Rothberg, LJ ;

Yan, M ;

Papadimitrakopoulos, F ;

Galvin, ME ;

Kwock, EW ;

Miller, TM .

SYNTHETIC METALS, 1996, 80 (01) :41-58

[10] Temperature dependent photoluminescence from a cyano-substituted phenylene vinylene polymer. [J].

Rumbles, G ;

Samuel, IDW ;

Collison, CJ ;

Miller, PF ;

Moratti, SC ;

Holmes, AB .

SYNTHETIC METALS, 1999, 101 (1-3) :158-161