Singlet exciton diffusion in MEH-PPV films studied by exciton-exciton annihilation

A. J. Lewis; A. Ruseckas; O. P. M. Gaudin; G. R. Webster; P. L. Burn; I. D. W. Samuel

doi:10.1016/j.orgel.2006.05.009

Singlet exciton diffusion in MEH-PPV films studied by exciton-exciton annihilation

A. J. Lewis, A. Ruseckas, O. P. M. Gaudin, G. R. Webster, P. L. Burn, I. D. W. Samuel

Research output: Contribution to journal › Article › peer-review

Abstract

We report time-resolved photoluminescence studies in MEH-PPV films for a wide range of excitation intensities. The results fit well to a diffusion-limited exciton-exciton annihilation model with an annihilation constant gamma = (2.8 +/- 0.5) x 10(-8) cm(3) s(-1). This enables us to estimate the exciton diffusion coefficient to be D = (3 +/- 1) x 10(-3) cm(2) s(-1). This corresponds to a diffusion length between 5 and 8 nm for one-dimensional diffusion. (c) 2006 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	452-456
Number of pages	5
Journal	Organic Electronics
Volume	7
DOIs	https://doi.org/10.1016/j.orgel.2006.05.009
Publication status	Published - Dec 2006

Keywords

exciton
diffusion
solar cell
photovoltaic
photophysics
MEH-PPV
CONJUGATED POLYMER
PHOTOVOLTAIC CELLS
ENERGY-TRANSFER
BINDING-ENERGY
SOLAR-CELLS
HETEROJUNCTION
DISSOCIATION
POLY(P-PHENYLENEVINYLENE)
HETEROSTRUCTURE
EMISSION

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.orgel.2006.05.009

Cite this

@article{9e953b23547b429496401319362d0eaa,

title = "Singlet exciton diffusion in MEH-PPV films studied by exciton-exciton annihilation",

abstract = "We report time-resolved photoluminescence studies in MEH-PPV films for a wide range of excitation intensities. The results fit well to a diffusion-limited exciton-exciton annihilation model with an annihilation constant gamma = (2.8 +/- 0.5) x 10(-8) cm(3) s(-1). This enables us to estimate the exciton diffusion coefficient to be D = (3 +/- 1) x 10(-3) cm(2) s(-1). This corresponds to a diffusion length between 5 and 8 nm for one-dimensional diffusion. (c) 2006 Elsevier B.V. All rights reserved.",

keywords = "exciton, diffusion, solar cell, photovoltaic, photophysics, MEH-PPV, CONJUGATED POLYMER, PHOTOVOLTAIC CELLS, ENERGY-TRANSFER, BINDING-ENERGY, SOLAR-CELLS, HETEROJUNCTION, DISSOCIATION, POLY(P-PHENYLENEVINYLENE), HETEROSTRUCTURE, EMISSION",

author = "Lewis, {A. J.} and A. Ruseckas and Gaudin, {O. P. M.} and Webster, {G. R.} and Burn, {P. L.} and Samuel, {I. D. W.}",

year = "2006",

month = dec,

doi = "10.1016/j.orgel.2006.05.009",

language = "English",

volume = "7",

pages = "452--456",

journal = "Organic Electronics",

publisher = "Elsevier",

}

TY - JOUR

T1 - Singlet exciton diffusion in MEH-PPV films studied by exciton-exciton annihilation

AU - Lewis, A. J.

AU - Ruseckas, A.

AU - Gaudin, O. P. M.

AU - Webster, G. R.

AU - Burn, P. L.

AU - Samuel, I. D. W.

PY - 2006/12

Y1 - 2006/12

N2 - We report time-resolved photoluminescence studies in MEH-PPV films for a wide range of excitation intensities. The results fit well to a diffusion-limited exciton-exciton annihilation model with an annihilation constant gamma = (2.8 +/- 0.5) x 10(-8) cm(3) s(-1). This enables us to estimate the exciton diffusion coefficient to be D = (3 +/- 1) x 10(-3) cm(2) s(-1). This corresponds to a diffusion length between 5 and 8 nm for one-dimensional diffusion. (c) 2006 Elsevier B.V. All rights reserved.

AB - We report time-resolved photoluminescence studies in MEH-PPV films for a wide range of excitation intensities. The results fit well to a diffusion-limited exciton-exciton annihilation model with an annihilation constant gamma = (2.8 +/- 0.5) x 10(-8) cm(3) s(-1). This enables us to estimate the exciton diffusion coefficient to be D = (3 +/- 1) x 10(-3) cm(2) s(-1). This corresponds to a diffusion length between 5 and 8 nm for one-dimensional diffusion. (c) 2006 Elsevier B.V. All rights reserved.

KW - exciton

KW - diffusion

KW - solar cell

KW - photovoltaic

KW - photophysics

KW - MEH-PPV

KW - CONJUGATED POLYMER

KW - PHOTOVOLTAIC CELLS

KW - ENERGY-TRANSFER

KW - BINDING-ENERGY

KW - SOLAR-CELLS

KW - HETEROJUNCTION

KW - DISSOCIATION

KW - POLY(P-PHENYLENEVINYLENE)

KW - HETEROSTRUCTURE

KW - EMISSION

UR - http://www.scopus.com/inward/record.url?scp=33750989091&partnerID=8YFLogxK

U2 - 10.1016/j.orgel.2006.05.009

DO - 10.1016/j.orgel.2006.05.009

M3 - Article

VL - 7

SP - 452

EP - 456

JO - Organic Electronics

JF - Organic Electronics

ER -

Singlet exciton diffusion in MEH-PPV films studied by exciton-exciton annihilation

Abstract

Keywords

UN SDGs

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EPSRC GR/S62628/01: Efficient photovoltaic materials

Cite this

Singlet exciton diffusion in MEH-PPV films studied by exciton-exciton annihilation

Abstract

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Projects

EPSRC GR/S62628/01: Efficient photovoltaic materials

Cite this