Roll-coating fabrication of ITO-free flexible solar cells based on a non-fullerene small molecule acceptor

Wenqing Liu; Hangqi Shi; Thomas Rieks Andersen; Natalia Klaudia Zawacka; Pei Cheng; Eva Bundgaard; Minmin Shi; Xiaowei Zhan; Frederik C Krebs; Hongzheng Chen

doi:10.1039/c5ra04336k

Roll-coating fabrication of ITO-free flexible solar cells based on a non-fullerene small molecule acceptor

Wenqing Liu, Hangqi Shi, Thomas Rieks Andersen, Natalia Klaudia Zawacka, Pei Cheng, Eva Bundgaard, Minmin Shi, Xiaowei Zhan, Frederik C Krebs, Hongzheng Chen

Department of Energy Conversion and Storage

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

We report organic solar cells (OSCs) with non-fullerene small molecule acceptors (SMAs) prepared in large area via a roll coating process. We employ all solution-processed indium tin oxide (ITO)-free flexible substrates for inverted solar cells with a new SMA of F(DPP)(2)B-2. By utilizing poly(3-hexylthiophene) as donor blended with F(DPP)(2)B-2 as acceptor, ITO-free large-area flexible SMA based OSCs were produced under ambient conditions with the use of slot-die coating and flexographic printing methods on a lab-scale compact roll-coater that is readily transferrable to roll-to-roll processing. The effect of different processing solvents on the device performance was investigated, and the best performance with a power conversion efficiency of 0.65%, an open circuit voltage of 0.85 V, a short-circuit current density of 2.19 mA cm(-2), and a fill factor of 35% was obtained.

Original language	English
Journal	R S C Advances
Volume	5
Issue number	45
Pages (from-to)	36001-36006
Number of pages	6
ISSN	2046-2069
DOIs	https://doi.org/10.1039/c5ra04336k
Publication status	Published - 2015

Keywords

CHEMISTRY,
POWER CONVERSION EFFICIENCY
ORGANIC PHOTOVOLTAICS
ELECTRON-ACCEPTOR
DESIGN
DIKETOPYRROLOPYRROLE
MORPHOLOGY
SINGLE
FUTURE
FILM
Coatings
Fullerenes
Molecules
Open circuit voltage
Rolls (machine components)
Tin oxides
Device performance
Flexible solar cells
Flexible substrate
Flexographic printing
Inverted solar cells
Poly (3-hexylthiophene)
Power conversion efficiencies
Roll-to-roll processing
Solar cells

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title = "Roll-coating fabrication of ITO-free flexible solar cells based on a non-fullerene small molecule acceptor",

abstract = "We report organic solar cells (OSCs) with non-fullerene small molecule acceptors (SMAs) prepared in large area via a roll coating process. We employ all solution-processed indium tin oxide (ITO)-free flexible substrates for inverted solar cells with a new SMA of F(DPP)(2)B-2. By utilizing poly(3-hexylthiophene) as donor blended with F(DPP)(2)B-2 as acceptor, ITO-free large-area flexible SMA based OSCs were produced under ambient conditions with the use of slot-die coating and flexographic printing methods on a lab-scale compact roll-coater that is readily transferrable to roll-to-roll processing. The effect of different processing solvents on the device performance was investigated, and the best performance with a power conversion efficiency of 0.65%, an open circuit voltage of 0.85 V, a short-circuit current density of 2.19 mA cm(-2), and a fill factor of 35% was obtained.",

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author = "Wenqing Liu and Hangqi Shi and Andersen, {Thomas Rieks} and Zawacka, {Natalia Klaudia} and Pei Cheng and Eva Bundgaard and Minmin Shi and Xiaowei Zhan and Krebs, {Frederik C} and Hongzheng Chen",

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AU - Liu, Wenqing

AU - Shi, Hangqi

AU - Andersen, Thomas Rieks

AU - Zawacka, Natalia Klaudia

AU - Cheng, Pei

AU - Bundgaard, Eva

AU - Shi, Minmin

AU - Zhan, Xiaowei

AU - Krebs, Frederik C

AU - Chen, Hongzheng

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N2 - We report organic solar cells (OSCs) with non-fullerene small molecule acceptors (SMAs) prepared in large area via a roll coating process. We employ all solution-processed indium tin oxide (ITO)-free flexible substrates for inverted solar cells with a new SMA of F(DPP)(2)B-2. By utilizing poly(3-hexylthiophene) as donor blended with F(DPP)(2)B-2 as acceptor, ITO-free large-area flexible SMA based OSCs were produced under ambient conditions with the use of slot-die coating and flexographic printing methods on a lab-scale compact roll-coater that is readily transferrable to roll-to-roll processing. The effect of different processing solvents on the device performance was investigated, and the best performance with a power conversion efficiency of 0.65%, an open circuit voltage of 0.85 V, a short-circuit current density of 2.19 mA cm(-2), and a fill factor of 35% was obtained.

AB - We report organic solar cells (OSCs) with non-fullerene small molecule acceptors (SMAs) prepared in large area via a roll coating process. We employ all solution-processed indium tin oxide (ITO)-free flexible substrates for inverted solar cells with a new SMA of F(DPP)(2)B-2. By utilizing poly(3-hexylthiophene) as donor blended with F(DPP)(2)B-2 as acceptor, ITO-free large-area flexible SMA based OSCs were produced under ambient conditions with the use of slot-die coating and flexographic printing methods on a lab-scale compact roll-coater that is readily transferrable to roll-to-roll processing. The effect of different processing solvents on the device performance was investigated, and the best performance with a power conversion efficiency of 0.65%, an open circuit voltage of 0.85 V, a short-circuit current density of 2.19 mA cm(-2), and a fill factor of 35% was obtained.

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KW - POWER CONVERSION EFFICIENCY

KW - ORGANIC PHOTOVOLTAICS

KW - ELECTRON-ACCEPTOR

KW - DESIGN

KW - DIKETOPYRROLOPYRROLE

KW - MORPHOLOGY

KW - SINGLE

KW - FUTURE

KW - FILM

KW - Coatings

KW - Fullerenes

KW - Molecules

KW - Open circuit voltage

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KW - Tin oxides

KW - Device performance

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KW - Inverted solar cells

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KW - Power conversion efficiencies

KW - Roll-to-roll processing

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U2 - 10.1039/c5ra04336k

DO - 10.1039/c5ra04336k

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JO - R S C Advances

JF - R S C Advances

IS - 45

ER -

Roll-coating fabrication of ITO-free flexible solar cells based on a non-fullerene small molecule acceptor

Abstract

Keywords

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