Improved performance and life time of inverted organic photovoltaics by using polymer interfacial materials

Zandra George; Eszter Voroshazi; Camilla Lindqvist; Renee Kroon; Wenliu Zhuang; Ergang Wang; Patrik Henriksson; Afshin Hadipour; Mats R. Andersson

doi:10.1016/j.solmat.2014.10.034

Improved performance and life time of inverted organic photovoltaics by using polymer interfacial materials

Zandra George, Eszter Voroshazi, Camilla Lindqvist, Renee Kroon, Wenliu Zhuang, Ergang Wang, Patrik Henriksson, Afshin Hadipour, Mats R. Andersson

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

10 Citations (Scopus)

Abstract

A previously published fluorene based interlayer polymer is here compared to three similar polymers where the fluorene monomer has been exchanged with monomers that have been reported to have a higher photo-chemical stability. The polymer interlayers have been studied in terms of their influence on device performance and stability on inverted devices with an active layer of P3HT:PC₆₁BM. By acting as a hole-blocking layer the polymers are able to increase the efficiency of the devices with ~50% compared to devices with an ITO cathode. In addition, the polymers also improve the photo-stability of the devices, mainly as an effect of a reduced decrease in open-circuit voltage and fill factor. This indicates that solution processable polymer interlayers could be a way towards both higher efficiency and improved stability of inverted organic solar cells.

Original language	English
Pages (from-to)	99-104
Number of pages	6
Journal	Solar Energy Materials and Solar Cells
Volume	133
DOIs	https://doi.org/10.1016/j.solmat.2014.10.034
Publication status	Published - Feb 2015

Keywords

Life time stability
Polymer interlayer
Solar cells

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10.1016/j.solmat.2014.10.034

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title = "Improved performance and life time of inverted organic photovoltaics by using polymer interfacial materials",

abstract = "A previously published fluorene based interlayer polymer is here compared to three similar polymers where the fluorene monomer has been exchanged with monomers that have been reported to have a higher photo-chemical stability. The polymer interlayers have been studied in terms of their influence on device performance and stability on inverted devices with an active layer of P3HT:PC61BM. By acting as a hole-blocking layer the polymers are able to increase the efficiency of the devices with ~50% compared to devices with an ITO cathode. In addition, the polymers also improve the photo-stability of the devices, mainly as an effect of a reduced decrease in open-circuit voltage and fill factor. This indicates that solution processable polymer interlayers could be a way towards both higher efficiency and improved stability of inverted organic solar cells.",

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AU - George, Zandra

AU - Voroshazi, Eszter

AU - Lindqvist, Camilla

AU - Kroon, Renee

AU - Zhuang, Wenliu

AU - Wang, Ergang

AU - Henriksson, Patrik

AU - Hadipour, Afshin

AU - Andersson, Mats R.

PY - 2015/2

Y1 - 2015/2

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AB - A previously published fluorene based interlayer polymer is here compared to three similar polymers where the fluorene monomer has been exchanged with monomers that have been reported to have a higher photo-chemical stability. The polymer interlayers have been studied in terms of their influence on device performance and stability on inverted devices with an active layer of P3HT:PC61BM. By acting as a hole-blocking layer the polymers are able to increase the efficiency of the devices with ~50% compared to devices with an ITO cathode. In addition, the polymers also improve the photo-stability of the devices, mainly as an effect of a reduced decrease in open-circuit voltage and fill factor. This indicates that solution processable polymer interlayers could be a way towards both higher efficiency and improved stability of inverted organic solar cells.

KW - Life time stability

KW - Polymer interlayer

KW - Solar cells

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DO - 10.1016/j.solmat.2014.10.034

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JO - Solar Energy Materials and Solar Cells

JF - Solar Energy Materials and Solar Cells

ER -

Improved performance and life time of inverted organic photovoltaics by using polymer interfacial materials

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Keywords

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