Electron mobility of non-fullerene acceptors using a time of flight method

Natalie A. Mica; Stuart A. J. Thomson; Ifor D. W. Samuel

doi:10.1016/j.orgel.2018.08.027

Electron mobility of non-fullerene acceptors using a time of flight method

Natalie A. Mica, Stuart A. J. Thomson, Ifor D. W. Samuel

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

Abstract

Organic solar cells are a promising renewable energy technology, offering the advantages of mechanical flexibility and solution processability. The charge carrier mobility is an important parameter as it influences the competition between charge extraction and recombination and therefore the cell efficiency. We report the electron mobility of two high performance non-fullerene acceptors ITIC and IDTBR in neat films and blended with their common donors. In a pure film ITIC has a zero-field electron mobility of 7.4 × 10⁻⁴ cm²/Vs, which dropped to 1.0 × 10⁻⁴ cm²/Vs when put into a blend with PTB7-Th or P3HT. The IDTBR:P3HT blend was found to have a slightly lower electron mobility of 5.6 × 10⁻⁵ cm²/Vs. The measured electron mobility is the same order of magnitude as the hole mobility in these blends, leading to balanced transport and efficient photovoltaic cells.

Original language	English
Journal	Organic Electronics
Volume	In press
Early online date	12 Aug 2018
DOIs	https://doi.org/10.1016/j.orgel.2018.08.027
Publication status	Published - 1 Dec 2018

Keywords

Non-fullerene acceptor
Time of flight
Mobility

UN SDGs

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

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10.1016/j.orgel.2018.08.027

Mica_2018_OE_Electronmobility_AAM
© 2018 Elsevier B. V. 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: 10.1016/j.orgel.2018.08.027
Accepted author manuscript, 1.22 MBLicence: CC BY-NC-ND

CM DTC 2014 - 2022: EPSRC centre for doctoral training in condensed matter physics: Renewal of the CM-DTC
King, P. (PI)
EPSRC
1/08/14 → 31/01/24
Project: Standard
EPSRC AOOMD Fellowship: Advanced Organic Optoelectronic Materials and Devices
Samuel, I. D. W. (PI)
EPSRC
1/03/06 → 28/02/11
Project: Fellowship

Electron mobility of non-fullerene acceptors using a time of flight method (dataset)
Mica, N. (Creator), Thomson, S. A. J. (Creator) & Samuel, I. D. W. (Creator), University of St Andrews, 12 Nov 2018
DOI: 10.17630/507fc379-b6e2-42e6-9023-d1b06217b83d
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title = "Electron mobility of non-fullerene acceptors using a time of flight method",

abstract = "Organic solar cells are a promising renewable energy technology, offering the advantages of mechanical flexibility and solution processability. The charge carrier mobility is an important parameter as it influences the competition between charge extraction and recombination and therefore the cell efficiency. We report the electron mobility of two high performance non-fullerene acceptors ITIC and IDTBR in neat films and blended with their common donors. In a pure film ITIC has a zero-field electron mobility of 7.4 × 10−4 cm2/Vs, which dropped to 1.0 × 10−4 cm2/Vs when put into a blend with PTB7-Th or P3HT. The IDTBR:P3HT blend was found to have a slightly lower electron mobility of 5.6 × 10−5 cm2/Vs. The measured electron mobility is the same order of magnitude as the hole mobility in these blends, leading to balanced transport and efficient photovoltaic cells.",

keywords = "Non-fullerene acceptor, Time of flight, Mobility",

author = "Mica, {Natalie A.} and Thomson, {Stuart A. J.} and Samuel, {Ifor D. W.}",

note = "Natalie A. Mica and Stuart A. J. Thompson acknowledge student funding from EPSRC. [grant nos. EP/L015110/1 and EP/G03673X/1] Ifor D. W. Samuel acknowledges support from a Royal Society Wolfson Research Merit award.",

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doi = "10.1016/j.orgel.2018.08.027",

language = "English",

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journal = "Organic Electronics",

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T1 - Electron mobility of non-fullerene acceptors using a time of flight method

AU - Mica, Natalie A.

AU - Thomson, Stuart A. J.

AU - Samuel, Ifor D. W.

N1 - Natalie A. Mica and Stuart A. J. Thompson acknowledge student funding from EPSRC. [grant nos. EP/L015110/1 and EP/G03673X/1] Ifor D. W. Samuel acknowledges support from a Royal Society Wolfson Research Merit award.

PY - 2018/12/1

Y1 - 2018/12/1

N2 - Organic solar cells are a promising renewable energy technology, offering the advantages of mechanical flexibility and solution processability. The charge carrier mobility is an important parameter as it influences the competition between charge extraction and recombination and therefore the cell efficiency. We report the electron mobility of two high performance non-fullerene acceptors ITIC and IDTBR in neat films and blended with their common donors. In a pure film ITIC has a zero-field electron mobility of 7.4 × 10−4 cm2/Vs, which dropped to 1.0 × 10−4 cm2/Vs when put into a blend with PTB7-Th or P3HT. The IDTBR:P3HT blend was found to have a slightly lower electron mobility of 5.6 × 10−5 cm2/Vs. The measured electron mobility is the same order of magnitude as the hole mobility in these blends, leading to balanced transport and efficient photovoltaic cells.

AB - Organic solar cells are a promising renewable energy technology, offering the advantages of mechanical flexibility and solution processability. The charge carrier mobility is an important parameter as it influences the competition between charge extraction and recombination and therefore the cell efficiency. We report the electron mobility of two high performance non-fullerene acceptors ITIC and IDTBR in neat films and blended with their common donors. In a pure film ITIC has a zero-field electron mobility of 7.4 × 10−4 cm2/Vs, which dropped to 1.0 × 10−4 cm2/Vs when put into a blend with PTB7-Th or P3HT. The IDTBR:P3HT blend was found to have a slightly lower electron mobility of 5.6 × 10−5 cm2/Vs. The measured electron mobility is the same order of magnitude as the hole mobility in these blends, leading to balanced transport and efficient photovoltaic cells.

KW - Non-fullerene acceptor

KW - Time of flight

KW - Mobility

U2 - 10.1016/j.orgel.2018.08.027

DO - 10.1016/j.orgel.2018.08.027

M3 - Article

SN - 1566-1199

VL - In press

JO - Organic Electronics

JF - Organic Electronics

ER -

Electron mobility of non-fullerene acceptors using a time of flight method

Abstract

Keywords

UN SDGs

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Projects

CM DTC 2014 - 2022: EPSRC centre for doctoral training in condensed matter physics: Renewal of the CM-DTC

EPSRC AOOMD Fellowship: Advanced Organic Optoelectronic Materials and Devices

Datasets

Electron mobility of non-fullerene acceptors using a time of flight method (dataset)

Cite this