Trap limited exciton transport in conjugated polymers

被引：67

作者：

Athanasopoulos, Stavros ^{[1
]}

Hennebicq, Emmanuelle ^{[2
]}

Beljonne, David ^{[2
]}

Walker, Alison B. ^{[1
,2
]}

机构：

[1] Univ Bath, Dept Phys, Bath BA2 7AY, Avon, England

[2] Univ Mons, Lab Chem Novel Mat, Ctr Res Mol Elect & Photon, B-7000 Mons, Belgium

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 30期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1021/jp802704z

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：

A Monte-Carlo approach based on hopping rates computed from quantum-chemical calculations is applied to model the energy diffusion dynamics in a polyindenofluorene conjugated polymer on a predetermined chain morphology. While the model predicts faster time-dependent energy evolution than that seen by site-selective experiments and yields a diffusion length that is an order of magnitude larger than typical experimental values, we show that these discrepancies can be corrected by introducing a low concentration of traps in the transport simulations. Implications for conjugated polymer based opto-electronic devices are discussed.

引用

页码：11532 / 11538

页数：7

共 43 条

[1] Design of fluorescent materials for chemical sensing [J].

Basabe-Desmonts, Lourdes ;

Reinhoudt, David N. ;

Crego-Calama, Mercedes .

CHEMICAL SOCIETY REVIEWS, 2007, 36 (06) :993-1017

[2] Site-selective fluorescence spectroscopy of conjugated polymers and oligomers [J].

Bässler, H ;

Schweitzer, B .

ACCOUNTS OF CHEMICAL RESEARCH, 1999, 32 (02) :173-182

[3] Interchain vs. intrachain energy transfer in acceptor-capped conjugated polymers [J].

Beljonne, D ;

Pourtois, G ;

Silva, C ;

Hennebicq, E ;

Herz, LM ;

Friend, RH ;

Scholes, GD ;

Setayesh, S ;

Müllen, K ;

Brédas, JL .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2002, 99 (17) :10982-10987

[4] Semiconductors for organic transistors [J].

Facchetti, Antonio .

MATERIALS TODAY, 2007, 10 (03) :28-37

[5] *ZWISCHENMOLEKULARE ENERGIEWANDERUNG UND FLUORESZENZ [J].

FORSTER, T .

ANNALEN DER PHYSIK, 1948, 2 (1-2) :55-75

[6] Fast energy migration in pyronine-loaded zeolite L microcrystals [J].

Gfeller, N ;

Megelski, S ;

Calzaferri, G .

JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (08) :1250-1257

[7] Conformational disorder and energy migration in MEH-PPV with partially broken conjugation [J].

Grage, MML ;

Wood, PW ;

Ruseckas, A ;

Pullerits, T ;

Mitchell, W ;

Burn, PL ;

Samuel, IDW ;

Sundström, V .

JOURNAL OF CHEMICAL PHYSICS, 2003, 118 (16) :7644-7650

[8] Conformational disorder of a substituted polythiophene in solution revealed by excitation transfer [J].

Grage, MML ;

Pullerits, T ;

Ruseckas, A ;

Theander, M ;

Inganäs, O ;

Sundström, V .

CHEMICAL PHYSICS LETTERS, 2001, 339 (1-2) :96-102

[9] Conjugated polymer-based organic solar cells [J].

Guenes, Serap ;

Neugebauer, Helmut ;

Sariciftci, Niyazi Serdar .

CHEMICAL REVIEWS, 2007, 107 (04) :1324-1338

[10] Exciton diffusion and dissociation in conjugated polymer fullerene blends and heterostructures [J].

Haugeneder, A ;

Neges, M ;

Kallinger, C ;

Spirkl, W ;

Lemmer, U ;

Feldmann, J ;

Scherf, U ;

Harth, E ;

Gügel, A ;

Müllen, K .

PHYSICAL REVIEW B, 1999, 59 (23) :15346-15351

← 1 2 3 4 5 →