All solution processing of ITO-free organic solar cell modules directly on barrier foil

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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All solution processing of ITO-free organic solar cell modules directly on barrier foil. / Angmo, Dechan; Hösel, Markus; Krebs, Frederik C.

In: Solar Energy Materials & Solar Cells, Vol. 107, 2012, p. 329-336.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Angmo, Dechan; Hösel, Markus; Krebs, Frederik C / All solution processing of ITO-free organic solar cell modules directly on barrier foil.

In: Solar Energy Materials & Solar Cells, Vol. 107, 2012, p. 329-336.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Bibtex

@article{041c5fb6f1c149a8bba7316450ba6790,
title = "All solution processing of ITO-free organic solar cell modules directly on barrier foil",
keywords = "ITO-free, Organic solarcells, Roll-to-roll processing, Ag, Silver, Electrode",
publisher = "Elsevier BV North-Holland",
author = "Dechan Angmo and Markus Hösel and Krebs, {Frederik C}",
year = "2012",
doi = "10.1016/j.solmat.2012.07.004",
volume = "107",
pages = "329--336",
journal = "Solar Energy Materials & Solar Cells",
issn = "0927-0248",

}

RIS

TY - JOUR

T1 - All solution processing of ITO-free organic solar cell modules directly on barrier foil

A1 - Angmo,Dechan

A1 - Hösel,Markus

A1 - Krebs,Frederik C

AU - Angmo,Dechan

AU - Hösel,Markus

AU - Krebs,Frederik C

PB - Elsevier BV North-Holland

PY - 2012

Y1 - 2012

N2 - In this study, we demonstrate fully solution processed semi-transparent silver electrodes on flexible substrates having a sheet resistance as low as 5Ω/□ and transmittance of ∼30% at 550nm. We demonstrate the use of this electrode as a substitute for ITO in an inverted organic solar cell (OSC) with the layer sequence, PET/Ag/ZnO/P3HT:PCBM/PEDOT:PSS/Ag where illumination is achieved through the first Ag layer. Power conversion efficiency of up to 1.6% under 1 sun illumination (100mWcm−2 and AM1.5G) is achieved for small area (1cm2) test devices. We further demonstrate scalability of the semi-transparent Ag electrode fabrication in a roll-to-roll (R2R) process using slot-die coating. This electrode is further utilized in R2R processing of large area modules (active area 35.5cm2) where all layers in the modules are R2R processed with solution-based materials in ambient conditions without any use of vacuum steps. We further demonstrate the possibility of using barrier foil as the substrate in the R2R processing of modules. Module performance is evaluated by current–voltage characterization and Light Beam Induced Current (LBIC imaging). Such a semi-transparent Ag electrode incurs very little material and processing cost and is a cost-effective alternative to ITO for low-cost organic solar cells.

AB - In this study, we demonstrate fully solution processed semi-transparent silver electrodes on flexible substrates having a sheet resistance as low as 5Ω/□ and transmittance of ∼30% at 550nm. We demonstrate the use of this electrode as a substitute for ITO in an inverted organic solar cell (OSC) with the layer sequence, PET/Ag/ZnO/P3HT:PCBM/PEDOT:PSS/Ag where illumination is achieved through the first Ag layer. Power conversion efficiency of up to 1.6% under 1 sun illumination (100mWcm−2 and AM1.5G) is achieved for small area (1cm2) test devices. We further demonstrate scalability of the semi-transparent Ag electrode fabrication in a roll-to-roll (R2R) process using slot-die coating. This electrode is further utilized in R2R processing of large area modules (active area 35.5cm2) where all layers in the modules are R2R processed with solution-based materials in ambient conditions without any use of vacuum steps. We further demonstrate the possibility of using barrier foil as the substrate in the R2R processing of modules. Module performance is evaluated by current–voltage characterization and Light Beam Induced Current (LBIC imaging). Such a semi-transparent Ag electrode incurs very little material and processing cost and is a cost-effective alternative to ITO for low-cost organic solar cells.

KW - ITO-free

KW - Organic solarcells

KW - Roll-to-roll processing

KW - Ag

KW - Silver

KW - Electrode

U2 - 10.1016/j.solmat.2012.07.004

DO - 10.1016/j.solmat.2012.07.004

JO - Solar Energy Materials & Solar Cells

JF - Solar Energy Materials & Solar Cells

SN - 0927-0248

VL - 107

SP - 329

EP - 336

ER -