Spray coated indium-tin-oxide-free organic photodiodes with PEDOT:PSS anodes

Morten Schmidt; Aniello Falco; Marius Loch; Paolo Lugli; Giuseppe Scarpa

doi:10.1063/1.4899044

Spray coated indium-tin-oxide-free organic photodiodes with PEDOT:PSS anodes

Morten Schmidt, Aniello Falco, Marius Loch, Paolo Lugli, Giuseppe Scarpa

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Technical University of Munich

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Abstract

In this paper we report on Indium Tin Oxide (ITO)-free spray coated organic photodiodes with an active layer consisting of a poly(3-hexylthiophen) (P3HT) and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) blend and patterned poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) electrodes. External quantum efficiency and current voltage characteristics under illuminated and dark conditions as well as cut-off frequencies for devices with varying active and hole conducting layer thicknesses were measured in order to characterize the fabricated devices. 60% quantum efficiency as well as nearly four orders of magnitude on-off ratios have been achieved. Those values are comparable with standard ITO devices.

Original language	English
Article number	107132
Journal	AIP Advances
Volume	4
Issue number	10
DOIs	https://doi.org/10.1063/1.4899044
State	Published - 1 Oct 2014

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abstract = "In this paper we report on Indium Tin Oxide (ITO)-free spray coated organic photodiodes with an active layer consisting of a poly(3-hexylthiophen) (P3HT) and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) blend and patterned poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) electrodes. External quantum efficiency and current voltage characteristics under illuminated and dark conditions as well as cut-off frequencies for devices with varying active and hole conducting layer thicknesses were measured in order to characterize the fabricated devices. 60% quantum efficiency as well as nearly four orders of magnitude on-off ratios have been achieved. Those values are comparable with standard ITO devices.",

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AU - Schmidt, Morten

AU - Falco, Aniello

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AU - Lugli, Paolo

AU - Scarpa, Giuseppe

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AB - In this paper we report on Indium Tin Oxide (ITO)-free spray coated organic photodiodes with an active layer consisting of a poly(3-hexylthiophen) (P3HT) and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) blend and patterned poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) electrodes. External quantum efficiency and current voltage characteristics under illuminated and dark conditions as well as cut-off frequencies for devices with varying active and hole conducting layer thicknesses were measured in order to characterize the fabricated devices. 60% quantum efficiency as well as nearly four orders of magnitude on-off ratios have been achieved. Those values are comparable with standard ITO devices.

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Spray coated indium-tin-oxide-free organic photodiodes with PEDOT:PSS anodes

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