Efficiency Enhancement of Solution-Processed Flexible Organic Solar Cells

Wen-Kai LIN; Shui-Hsiang SU; Cheng-Lin HUANG; Meiso YOKOYAMA

doi:10.1587/transele.E98.C.147

Efficiency Enhancement of Solution-Processed Flexible Organic Solar Cells

Wen-Kai LIN, Shui-Hsiang SU, Cheng-Lin HUANG, Meiso YOKOYAMA

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In this study, flexible organic solar cells (OSCs) employing a solution-processed hole-transporting layer (HTL) and low temperature annealing active layer have been fabricated. Vanadium oxide (V₂O₅), poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate) (PEDOT:PSS), V₂O₅/PEDOT:PSS or PEDOT:PSS/V₂O₅ is used as the HTL. Poly(3-hexythiophene) (P3HT):[6,6]-phenyl C61-butyric acid methyl ester (PCBM) is used as the active layer. HTL and active layer are all formed by a spin coating method on polyethylene terephthalate (PET) substrates. The OSC configuration has been optimized in the study to be PET/ITO/V₂O₅/PEDOT:PSS/P3HT:PCBM/LiF/Al. Based on a low annealing temperature of 90°C for P3HT:PCBM and parameters optimization of solution-processed V₂O₅/PEDOT:PSS, the OSC demonstrates a current density (JSC) and power conversion efficiency (PCE) of 6.08 mA/cm² and 1.57%, while an OSC without the HTL has PCE around 0.06%. The V₂O₅/PEDOT:PSS stacked HTL provides not only a stepwise hole-transporting energy diagram configuration but a smooth film surface for coating P3HT:PCBM active layer, which subsequently increases charge carrier transporting capability and extracts holes from the active layer to the anode.

Publication: IEICE TRANSACTIONS on Electronics Vol.E98-C No.2 pp.147-151

Publication Date: 2015/02/01

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Online ISSN: 1745-1353

DOI: 10.1587/transele.E98.C.147

Type of Manuscript: BRIEF PAPER

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Authors

Wen-Kai LIN
  I-Shou University
Shui-Hsiang SU
  I-Shou University
Cheng-Lin HUANG
  I-Shou University
Meiso YOKOYAMA
  I-Shou University

Keyword

OSC, HTL, PET

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Wen-Kai LIN, Shui-Hsiang SU, Cheng-Lin HUANG, Meiso YOKOYAMA, "Efficiency Enhancement of Solution-Processed Flexible Organic Solar Cells" in IEICE TRANSACTIONS on Electronics, vol. E98-C, no. 2, pp. 147-151, February 2015, doi: 10.1587/transele.E98.C.147.
Abstract: In this study, flexible organic solar cells (OSCs) employing a solution-processed hole-transporting layer (HTL) and low temperature annealing active layer have been fabricated. Vanadium oxide (V₂O₅), poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate) (PEDOT:PSS), V₂O₅/PEDOT:PSS or PEDOT:PSS/V₂O₅ is used as the HTL. Poly(3-hexythiophene) (P3HT):[6,6]-phenyl C61-butyric acid methyl ester (PCBM) is used as the active layer. HTL and active layer are all formed by a spin coating method on polyethylene terephthalate (PET) substrates. The OSC configuration has been optimized in the study to be PET/ITO/V₂O₅/PEDOT:PSS/P3HT:PCBM/LiF/Al. Based on a low annealing temperature of 90°C for P3HT:PCBM and parameters optimization of solution-processed V₂O₅/PEDOT:PSS, the OSC demonstrates a current density (JSC) and power conversion efficiency (PCE) of 6.08 mA/cm² and 1.57%, while an OSC without the HTL has PCE around 0.06%. The V₂O₅/PEDOT:PSS stacked HTL provides not only a stepwise hole-transporting energy diagram configuration but a smooth film surface for coating P3HT:PCBM active layer, which subsequently increases charge carrier transporting capability and extracts holes from the active layer to the anode.
URL: https://globals.ieice.org/en_transactions/electronics/10.1587/transele.E98.C.147/_p

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@ARTICLE{e98-c_2_147,
author={Wen-Kai LIN, Shui-Hsiang SU, Cheng-Lin HUANG, Meiso YOKOYAMA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Efficiency Enhancement of Solution-Processed Flexible Organic Solar Cells},
year={2015},
volume={E98-C},
number={2},
pages={147-151},
abstract={In this study, flexible organic solar cells (OSCs) employing a solution-processed hole-transporting layer (HTL) and low temperature annealing active layer have been fabricated. Vanadium oxide (V₂O₅), poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate) (PEDOT:PSS), V₂O₅/PEDOT:PSS or PEDOT:PSS/V₂O₅ is used as the HTL. Poly(3-hexythiophene) (P3HT):[6,6]-phenyl C61-butyric acid methyl ester (PCBM) is used as the active layer. HTL and active layer are all formed by a spin coating method on polyethylene terephthalate (PET) substrates. The OSC configuration has been optimized in the study to be PET/ITO/V₂O₅/PEDOT:PSS/P3HT:PCBM/LiF/Al. Based on a low annealing temperature of 90°C for P3HT:PCBM and parameters optimization of solution-processed V₂O₅/PEDOT:PSS, the OSC demonstrates a current density (JSC) and power conversion efficiency (PCE) of 6.08 mA/cm² and 1.57%, while an OSC without the HTL has PCE around 0.06%. The V₂O₅/PEDOT:PSS stacked HTL provides not only a stepwise hole-transporting energy diagram configuration but a smooth film surface for coating P3HT:PCBM active layer, which subsequently increases charge carrier transporting capability and extracts holes from the active layer to the anode.},
keywords={},
doi={10.1587/transele.E98.C.147},
ISSN={1745-1353},
month={February},}

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TY - JOUR
TI - Efficiency Enhancement of Solution-Processed Flexible Organic Solar Cells
T2 - IEICE TRANSACTIONS on Electronics
SP - 147
EP - 151
AU - Wen-Kai LIN
AU - Shui-Hsiang SU
AU - Cheng-Lin HUANG
AU - Meiso YOKOYAMA
PY - 2015
DO - 10.1587/transele.E98.C.147
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E98-C
IS - 2
JA - IEICE TRANSACTIONS on Electronics
Y1 - February 2015
AB - In this study, flexible organic solar cells (OSCs) employing a solution-processed hole-transporting layer (HTL) and low temperature annealing active layer have been fabricated. Vanadium oxide (V₂O₅), poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate) (PEDOT:PSS), V₂O₅/PEDOT:PSS or PEDOT:PSS/V₂O₅ is used as the HTL. Poly(3-hexythiophene) (P3HT):[6,6]-phenyl C61-butyric acid methyl ester (PCBM) is used as the active layer. HTL and active layer are all formed by a spin coating method on polyethylene terephthalate (PET) substrates. The OSC configuration has been optimized in the study to be PET/ITO/V₂O₅/PEDOT:PSS/P3HT:PCBM/LiF/Al. Based on a low annealing temperature of 90°C for P3HT:PCBM and parameters optimization of solution-processed V₂O₅/PEDOT:PSS, the OSC demonstrates a current density (JSC) and power conversion efficiency (PCE) of 6.08 mA/cm² and 1.57%, while an OSC without the HTL has PCE around 0.06%. The V₂O₅/PEDOT:PSS stacked HTL provides not only a stepwise hole-transporting energy diagram configuration but a smooth film surface for coating P3HT:PCBM active layer, which subsequently increases charge carrier transporting capability and extracts holes from the active layer to the anode.
ER -