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Influence of indium tin oxide treatment using UV-ozone and argon plasma on the photovoltaic parameters of devices based on organic discotic materials

Destruel, Pierre ; Bock, Harald ; Séguy, Isabelle ; Jolinat, Pascale ; Oukachmih, Mimoun ; Bedel-Pereira, Elena

Polymer international, 2006-06, Vol.55 (6), p.601-607 [Periódico revisado por pares]

Chichester, UK: John Wiley & Sons, Ltd

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Título:
Influence of indium tin oxide treatment using UV-ozone and argon plasma on the photovoltaic parameters of devices based on organic discotic materials
Autor: Destruel, Pierre ; Bock, Harald ; Séguy, Isabelle ; Jolinat, Pascale ; Oukachmih, Mimoun ; Bedel-Pereira, Elena
Assuntos: Applied sciences ; argon microwave plasma ; discotic liquid crystals ; electronic structure ; Electronics ; Energy ; Exact sciences and technology ; indium tin oxide (ITO) ; interface ; Kelvin probe ; Natural energy ; open-circuit voltage ; Optoelectronic devices ; organic solar cells ; Photovoltaic conversion ; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices ; Solar cells. Photoelectrochemical cells ; Solar energy ; UV-ozone ; work function
É parte de: Polymer international, 2006-06, Vol.55 (6), p.601-607
Notas: ArticleID:PI1947
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ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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Descrição: Recently, we reported that the open circuit voltage, V0C, in two‐layer organic solar cells depends on the indium tin oxide (ITO) treatment. However, the V0C variation details were not clearly understood. The study of the electronic structure at the ITO/organic interface was carried out by using the Kelvin probe method. The results obtained show a strong dependence of the organic vacuum level on the ITO work function, which, in turn, depends on the anode treatment. An abrupt variation of the vacuum level was observed after deposition of a few organic monolayers, which could be attributed to the presence of dipoles at the interface. We demonstrate that the shift magnitude depends on the nature and duration of the ITO treatment. To this end, two different ITO treatments were used. The first one, based on UV–ozone exposure, is known to increase the ITO work function, WITO. The second of these uses a microwave argon plasma generated by a repartee cyclotron excitation. This was adapted for decreasing the WITO value. An investigation on the origin of these variations (‘up and down’) is presented in this study. Copyright © 2005 Society of Chemical Industry
Editor: Chichester, UK: John Wiley & Sons, Ltd
Idioma: Inglês

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Influence of indium tin oxide treatment using UV-ozone and argon plasma on the photovoltaic parameters of devices based on organic discotic materials

Destruel, Pierre ; Bock, Harald ; Séguy, Isabelle ; Jolinat, Pascale ; Oukachmih, Mimoun ; Bedel-Pereira, Elena

Chichester, UK: John Wiley & Sons, Ltd

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