The bulk heterojunction cells based on new helicenes – Preparation, implementation and surface examination

[Display omitted] •Photovoltaic cells based on the new azulene aza[4]helicene are present.•Heterojunction-bulk type photovoltaic cells were built.•The parameters describing the cell were calculated. This article presents results of a study of photovoltaic devices based on organic compounds, called S...

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Veröffentlicht in:Solar energy 2016-10, Vol.135, p.848-853
Hauptverfasser: Lewińska, Gabriela, Danel, Krzysztof S., Sanetra, Jerzy
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Sprache:eng
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Zusammenfassung:[Display omitted] •Photovoltaic cells based on the new azulene aza[4]helicene are present.•Heterojunction-bulk type photovoltaic cells were built.•The parameters describing the cell were calculated. This article presents results of a study of photovoltaic devices based on organic compounds, called SP69, SP70, SP71-helical structures containing 7-membered fused rings. During tests heterojunction solar cells were built with ITO/PEDOT:PSS/organic active layer/aluminum architecture, in which an active layer was two- or three-component organic compounds mixture. Parameters characterizing a photovoltaic cell were determined based on current-voltage characteristics. Conversion efficiency of light energy for helicene and P3HT active layer was about 1%, for P3HT:PCBM and helicene about 2%. There was also ellipsometric spectroscopy research performed.
ISSN:0038-092X
1471-1257
DOI:10.1016/j.solener.2016.06.055