The Role of Polymer Fractionation in Energetic Losses and Charge Carrier Lifetimes of Polymer: Fullerene Solar Cells

Derya Baran; Michelle S Vezie; Nicola Gasparini; Florent Deledalle; Jizhong Yao; Bob C. Schroeder; Hugo Bronstein; Tayebeh Ameri; Thomas Kirchartz; Iain McCulloch; Jenny Nelson; Christoph J. Brabec

doi:10.1021/acs.jpcc.5b05709

The Role of Polymer Fractionation in Energetic Losses and Charge Carrier Lifetimes of Polymer: Fullerene Solar Cells

Derya Baran, Michelle S Vezie, Nicola Gasparini, Florent Deledalle, Jizhong Yao, Bob C. Schroeder, Hugo Bronstein, Tayebeh Ameri, Thomas Kirchartz, Iain McCulloch, Jenny Nelson, Christoph J. Brabec

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

20 Scopus citations

Abstract

Non-radiative recombination reduces the open-circuit voltage relative to its theoretical limit and leads to reduced luminescence emission at a given excitation. Therefore it is possible to correlate changes in luminescence emission with changes in open-circuit voltage and in the charge carrier lifetime. Here we use luminescence studies combined with transient photovoltage and differential charging analyses to study the effect of polymer fractionation in indacenoedithiophene-co-benzothiadiazole (IDTBT):fullerene solar cells. In this system, polymer fractionation increases electroluminescence and reduces non-radiative recombination. High molecular weight and fractionated IDTBT polymers exhibit higher carrier lifetime-mobility product compared to their non-fractionated analogues, resulting in improved solar cell performance.

Original language	English (US)
Pages (from-to)	19668-19673
Number of pages	6
Journal	The Journal of Physical Chemistry C
Volume	119
Issue number	34
DOIs	https://doi.org/10.1021/acs.jpcc.5b05709
State	Published - Aug 17 2015

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KAUST Repository Item: Exported on 2020-10-01

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10.1021/acs.jpcc.5b05709

https://repository.kaust.edu.sa/bitstream/10754/567054/1/acs2Ejpcc2E5b05709.pdf

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Baran, D., Vezie, M. S., Gasparini, N., Deledalle, F., Yao, J., Schroeder, B. C., Bronstein, H., Ameri, T., Kirchartz, T., McCulloch, I., Nelson, J., & Brabec, C. J. (2015). The Role of Polymer Fractionation in Energetic Losses and Charge Carrier Lifetimes of Polymer: Fullerene Solar Cells. The Journal of Physical Chemistry C, 119(34), 19668-19673. https://doi.org/10.1021/acs.jpcc.5b05709

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title = "The Role of Polymer Fractionation in Energetic Losses and Charge Carrier Lifetimes of Polymer: Fullerene Solar Cells",

abstract = "Non-radiative recombination reduces the open-circuit voltage relative to its theoretical limit and leads to reduced luminescence emission at a given excitation. Therefore it is possible to correlate changes in luminescence emission with changes in open-circuit voltage and in the charge carrier lifetime. Here we use luminescence studies combined with transient photovoltage and differential charging analyses to study the effect of polymer fractionation in indacenoedithiophene-co-benzothiadiazole (IDTBT):fullerene solar cells. In this system, polymer fractionation increases electroluminescence and reduces non-radiative recombination. High molecular weight and fractionated IDTBT polymers exhibit higher carrier lifetime-mobility product compared to their non-fractionated analogues, resulting in improved solar cell performance.",

author = "Derya Baran and Vezie, {Michelle S} and Nicola Gasparini and Florent Deledalle and Jizhong Yao and Schroeder, {Bob C.} and Hugo Bronstein and Tayebeh Ameri and Thomas Kirchartz and Iain McCulloch and Jenny Nelson and Brabec, {Christoph J.}",

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Baran, D, Vezie, MS, Gasparini, N, Deledalle, F, Yao, J, Schroeder, BC, Bronstein, H, Ameri, T, Kirchartz, T, McCulloch, I, Nelson, J & Brabec, CJ 2015, 'The Role of Polymer Fractionation in Energetic Losses and Charge Carrier Lifetimes of Polymer: Fullerene Solar Cells', The Journal of Physical Chemistry C, vol. 119, no. 34, pp. 19668-19673. https://doi.org/10.1021/acs.jpcc.5b05709

TY - JOUR

T1 - The Role of Polymer Fractionation in Energetic Losses and Charge Carrier Lifetimes of Polymer: Fullerene Solar Cells

AU - Baran, Derya

AU - Vezie, Michelle S

AU - Gasparini, Nicola

AU - Deledalle, Florent

AU - Yao, Jizhong

AU - Schroeder, Bob C.

AU - Bronstein, Hugo

AU - Ameri, Tayebeh

AU - Kirchartz, Thomas

AU - McCulloch, Iain

AU - Nelson, Jenny

AU - Brabec, Christoph J.

N1 - KAUST Repository Item: Exported on 2020-10-01

PY - 2015/8/17

Y1 - 2015/8/17

N2 - Non-radiative recombination reduces the open-circuit voltage relative to its theoretical limit and leads to reduced luminescence emission at a given excitation. Therefore it is possible to correlate changes in luminescence emission with changes in open-circuit voltage and in the charge carrier lifetime. Here we use luminescence studies combined with transient photovoltage and differential charging analyses to study the effect of polymer fractionation in indacenoedithiophene-co-benzothiadiazole (IDTBT):fullerene solar cells. In this system, polymer fractionation increases electroluminescence and reduces non-radiative recombination. High molecular weight and fractionated IDTBT polymers exhibit higher carrier lifetime-mobility product compared to their non-fractionated analogues, resulting in improved solar cell performance.

AB - Non-radiative recombination reduces the open-circuit voltage relative to its theoretical limit and leads to reduced luminescence emission at a given excitation. Therefore it is possible to correlate changes in luminescence emission with changes in open-circuit voltage and in the charge carrier lifetime. Here we use luminescence studies combined with transient photovoltage and differential charging analyses to study the effect of polymer fractionation in indacenoedithiophene-co-benzothiadiazole (IDTBT):fullerene solar cells. In this system, polymer fractionation increases electroluminescence and reduces non-radiative recombination. High molecular weight and fractionated IDTBT polymers exhibit higher carrier lifetime-mobility product compared to their non-fractionated analogues, resulting in improved solar cell performance.

UR - http://hdl.handle.net/10754/567054

UR - http://pubs.acs.org/doi/abs/10.1021/acs.jpcc.5b05709

UR - http://www.scopus.com/inward/record.url?scp=84940481967&partnerID=8YFLogxK

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DO - 10.1021/acs.jpcc.5b05709

M3 - Article

SN - 1932-7447

VL - 119

SP - 19668

EP - 19673

JO - The Journal of Physical Chemistry C

JF - The Journal of Physical Chemistry C

IS - 34

ER -

The Role of Polymer Fractionation in Energetic Losses and Charge Carrier Lifetimes of Polymer: Fullerene Solar Cells

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