Roll-coating fabrication of flexible large area small molecule solar cells with power conversion efficiency exceeding 1%

Wenqing Liu; Shiyong Liu; Natalia Klaudia Zawacka; Thomas Rieks Andersen; Pei Cheng; Lei Fu; Meirong Chen; Weifei Fu; Eva Bundgaard; Mikkel Jørgensen; Xiaowei Zhan; Frederik C Krebs; Hongzheng Chen

doi:10.1039/c4ta04733h

Roll-coating fabrication of flexible large area small molecule solar cells with power conversion efficiency exceeding 1%

Wenqing Liu, Shiyong Liu, Natalia Klaudia Zawacka, Thomas Rieks Andersen, Pei Cheng, Lei Fu, Meirong Chen, Weifei Fu, Eva Bundgaard, Mikkel Jørgensen, Xiaowei Zhan, Frederik C Krebs, Hongzheng Chen

Department of Energy Conversion and Storage

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

Abstract

All solution-processed flexible large area small molecule bulk heterojunction solar cells were fabricated via roll-coating technology. Our devices were produced from slot-die coating on a lab-scale mini roll-coater under ambient conditions without the use of spin-coating or vacuum evaporation methods. Four diketopyrrolopyrrole based small molecules (SMs 1-4) were utilized as electron donors with (6,6)phenyl- C61-butyric acid methyl ester as an acceptor and their photovoltaic performances based on roll-coated devices were investigated. The best power conversion efficiency (PCE) of 1.01%, combined with an open circuit voltage of 0.73 V, a short-circuit current density of 3.13 mA cm (2) and a fill factor of 44% were obtained for the device with SM1, which was the first example reported for efficient roll-coating fabrication of flexible large area small molecule solar cells with PCE exceeding 1%. In addition, rollcoated devices based on SMs 2-4 also showed good performances with PCEs of 0.41%, 0.54%, and 0.31%, respectively. Our results prove that small molecules have the potential for use in industries for large scale production of efficient organic solar cells.

Original language	English
Journal	Journal of Materials Chemistry A
Volume	2
Issue number	46
Pages (from-to)	19809-19814
Number of pages	6
ISSN	2050-7488
DOIs	https://doi.org/10.1039/c4ta04733h
Publication status	Published - 2014

Keywords

CHEMISTRY,
ENERGY
MATERIALS
ORGANIC PHOTOVOLTAICS
PHASE-SEPARATION
DIKETOPYRROLOPYRROLE
PERFORMANCE
DONOR
BENZODITHIOPHENE
BISADDUCT
ACCEPTOR
DESIGN
PYRENE

UN SDGs

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

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10.1039/c4ta04733h

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Danish-Chinese Center for Organic based Photovoltaic Cells with Morphology Control
Oksbjerg, B. (Project Participant), Trofod, T. (Project Participant), Bundgaard, E. (Project Participant), Andreasen, J. W. (Project Participant), Norrman, K. (Project Participant), Krebs, F. C. (Project Participant), Zawacka, N. K. (Project Participant), Jørgensen, M. (Project Participant), Angmo, D. (Project Participant), Andersen, T. R. (Project Participant), Bentzen, J. J. (Project Participant) & Rossander, L. H. (Project Participant)
31/08/2010 → 31/08/2016
Project: Research

Cite this

Liu, W., Liu, S., Zawacka, N. K., Andersen, T. R., Cheng, P., Fu, L., Chen, M., Fu, W., Bundgaard, E., Jørgensen, M., Zhan, X., Krebs, F. C., & Chen, H. (2014). Roll-coating fabrication of flexible large area small molecule solar cells with power conversion efficiency exceeding 1%. Journal of Materials Chemistry A, 2(46), 19809-19814. https://doi.org/10.1039/c4ta04733h

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AU - Liu, Wenqing

AU - Liu, Shiyong

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AU - Andersen, Thomas Rieks

AU - Cheng, Pei

AU - Fu, Lei

AU - Chen, Meirong

AU - Fu, Weifei

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AU - Jørgensen, Mikkel

AU - Zhan, Xiaowei

AU - Krebs, Frederik C

AU - Chen, Hongzheng

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AB - All solution-processed flexible large area small molecule bulk heterojunction solar cells were fabricated via roll-coating technology. Our devices were produced from slot-die coating on a lab-scale mini roll-coater under ambient conditions without the use of spin-coating or vacuum evaporation methods. Four diketopyrrolopyrrole based small molecules (SMs 1-4) were utilized as electron donors with (6,6)phenyl- C61-butyric acid methyl ester as an acceptor and their photovoltaic performances based on roll-coated devices were investigated. The best power conversion efficiency (PCE) of 1.01%, combined with an open circuit voltage of 0.73 V, a short-circuit current density of 3.13 mA cm (2) and a fill factor of 44% were obtained for the device with SM1, which was the first example reported for efficient roll-coating fabrication of flexible large area small molecule solar cells with PCE exceeding 1%. In addition, rollcoated devices based on SMs 2-4 also showed good performances with PCEs of 0.41%, 0.54%, and 0.31%, respectively. Our results prove that small molecules have the potential for use in industries for large scale production of efficient organic solar cells.

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KW - ORGANIC PHOTOVOLTAICS

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KW - PERFORMANCE

KW - DONOR

KW - BENZODITHIOPHENE

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JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

IS - 46

ER -

Roll-coating fabrication of flexible large area small molecule solar cells with power conversion efficiency exceeding 1%

Abstract

Keywords

UN SDGs

Access to Document

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Projects

Danish-Chinese Center for Organic based Photovoltaic Cells with Morphology Control

Cite this