Exciton diffusion length and charge extraction yield in organic bilayer solar cells

Bernhard  Siegmund; Muhammad Tariq Sajjad; Johannes  Widmer; Debdutta  Ray; Christian  Koerner; Moritz  Riede; Karl  Leo; Ifor David William Samuel; Koen  Vandewal

doi:10.1002/adma.201604424

Exciton diffusion length and charge extraction yield in organic bilayer solar cells

Bernhard Siegmund, Muhammad Tariq Sajjad, Johannes Widmer, Debdutta Ray, Christian Koerner, Moritz Riede, Karl Leo, Ifor David William Samuel, Koen Vandewal

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Abstract

A method for resolving the diffusion length of excitons and the extraction yield of charge carriers is presented based on the performance of organic bilayer solar cells and careful modeling. The technique uses a simultaneous variation of the absorber thickness and the excitation wavelength. Rigorously differing solar cell structures as well as independent photoluminescence quenching measurements give consistent results.

Original language	English
Article number	1604424
Number of pages	5
Journal	Advanced Materials
Volume	29
Issue number	12
Early online date	1 Feb 2017
DOIs	https://doi.org/10.1002/adma.201604424
Publication status	Published - 28 Mar 2017

Keywords

Exciton diffusion length
Charge carrier extraction
Organic photovoltaics
Bilayer
Photocurrent modelling

Access to Document

10.1002/adma.201604424

Siegmund_2017_Exciton_AdvMaterials_AAM
© 2017, Wiley-VCH, Verlag GmbH & Co, KGaA, Weinheim. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at http://onlinelibrary.wiley.com/ / https://doi.org/10.1002/adma.201604424
Accepted author manuscript, 865 KB
Siegmund_2017_Exciton_AdvMaterials_SI_AAMAccepted author manuscript, 752 KB

Equipment Account: Characterisation and Manipulation of Advanced Functional Materials and their Interfaces at the Nanoscale
Samuel, I. D. W. (PI)
EPSRC
1/10/13 → 30/09/23
Project: Standard
ERC Advanced Grant EXCITON: EU FP7 ERC Advanced Grant 2012 EXCITON
Samuel, I. D. W. (PI)
European Research Council
1/04/13 → 30/03/19
Project: Standard
Upgrade Small Equipment Base: Small items of research equipment at the University of St Andrews. Supporting a new generation of physical sciences research
Woollins, J. D. (PI)
EPSRC
1/11/12 → 31/03/13
Project: Standard

Exciton Diffusion Length and Charge Extraction Yield in Organic Bilayer Solar Cells (dataset)
Siegmund, B. (Creator), Sajjad, M. T. (Creator), Widmer, J. (Creator), Ray, D. (Creator), Koerner, C. (Creator), Riede, M. (Creator), Leo, K. (Creator), Samuel, I. D. W. (Creator) & Vandewal, K. (Creator), University of St Andrews, 2 Feb 2017
DOI: 10.17630/af263bfb-620c-40a8-9929-86658e5187d3
Dataset

File

Cite this

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title = "Exciton diffusion length and charge extraction yield in organic bilayer solar cells",

abstract = "A method for resolving the diffusion length of excitons and the extraction yield of charge carriers is presented based on the performance of organic bilayer solar cells and careful modeling. The technique uses a simultaneous variation of the absorber thickness and the excitation wavelength. Rigorously differing solar cell structures as well as independent photoluminescence quenching measurements give consistent results.",

keywords = "Exciton diffusion length, Charge carrier extraction, Organic photovoltaics, Bilayer, Photocurrent modelling",

author = "Bernhard Siegmund and Sajjad, {Muhammad Tariq} and Johannes Widmer and Debdutta Ray and Christian Koerner and Moritz Riede and Karl Leo and Samuel, {Ifor David William} and Koen Vandewal",

note = "The authors thank the German BMBF for funding within the scope of the projects InnoProfile 2.2 (03IPT602X) and MEDOS (03EK3503A) as well as the European Commission within the scope of the Career Integration Grant (FP7, MSCA, 630864). I.D.W.S. and M.T.S. acknowledge support from the European Research Council (grant number 321305) and from EPSRC (grant number EP/L017008/1). I.D.W.S. also acknowledges a Royal Society Wolfson Research Merit Award. K.L. is a fellow of the Canadian Institute for Advanced Research (CIFAR). The research data supporting this publication can be accessed at https://doi.org/10.17630/af263bfb-620c-40a8-9929-86658e5187d3",

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month = mar,

day = "28",

doi = "10.1002/adma.201604424",

language = "English",

volume = "29",

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T1 - Exciton diffusion length and charge extraction yield in organic bilayer solar cells

AU - Siegmund, Bernhard

AU - Sajjad, Muhammad Tariq

AU - Widmer, Johannes

AU - Ray, Debdutta

AU - Koerner, Christian

AU - Riede, Moritz

AU - Leo, Karl

AU - Samuel, Ifor David William

AU - Vandewal, Koen

N1 - The authors thank the German BMBF for funding within the scope of the projects InnoProfile 2.2 (03IPT602X) and MEDOS (03EK3503A) as well as the European Commission within the scope of the Career Integration Grant (FP7, MSCA, 630864). I.D.W.S. and M.T.S. acknowledge support from the European Research Council (grant number 321305) and from EPSRC (grant number EP/L017008/1). I.D.W.S. also acknowledges a Royal Society Wolfson Research Merit Award. K.L. is a fellow of the Canadian Institute for Advanced Research (CIFAR). The research data supporting this publication can be accessed at https://doi.org/10.17630/af263bfb-620c-40a8-9929-86658e5187d3

PY - 2017/3/28

Y1 - 2017/3/28

N2 - A method for resolving the diffusion length of excitons and the extraction yield of charge carriers is presented based on the performance of organic bilayer solar cells and careful modeling. The technique uses a simultaneous variation of the absorber thickness and the excitation wavelength. Rigorously differing solar cell structures as well as independent photoluminescence quenching measurements give consistent results.

AB - A method for resolving the diffusion length of excitons and the extraction yield of charge carriers is presented based on the performance of organic bilayer solar cells and careful modeling. The technique uses a simultaneous variation of the absorber thickness and the excitation wavelength. Rigorously differing solar cell structures as well as independent photoluminescence quenching measurements give consistent results.

KW - Exciton diffusion length

KW - Charge carrier extraction

KW - Organic photovoltaics

KW - Bilayer

KW - Photocurrent modelling

U2 - 10.1002/adma.201604424

DO - 10.1002/adma.201604424

M3 - Article

SN - 0935-9648

VL - 29

JO - Advanced Materials

JF - Advanced Materials

IS - 12

M1 - 1604424

ER -

Exciton diffusion length and charge extraction yield in organic bilayer solar cells

Abstract

Keywords

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Projects

Equipment Account: Characterisation and Manipulation of Advanced Functional Materials and their Interfaces at the Nanoscale

ERC Advanced Grant EXCITON: EU FP7 ERC Advanced Grant 2012 EXCITON

Upgrade Small Equipment Base: Small items of research equipment at the University of St Andrews. Supporting a new generation of physical sciences research

Datasets

Exciton Diffusion Length and Charge Extraction Yield in Organic Bilayer Solar Cells (dataset)

Cite this