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Simultaneous enhancement in open circuit voltage and short circuit current of hybrid organic-inorganic photovoltaics by inorganic interfacial modification

One of the key advantages of metal oxide/polymer organic-inorganic hybrid photovoltaic devices is the possibility to control the photo-induced charge separation efficiency by interfacial modification. While a large variety of organic modifiers have been investigated, inorganic modification layers re...

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Bibliographic Details
Main Authors: Hofstetter, Yvonne J. (Author) , Hopkinson, Paul E. (Author) , Bakulin, Artem A. (Author) , Vaynzof, Yana (Author)
Format: Article (Journal)
Language:English
Published: 04 Jan 2016
In: Journal of materials chemistry. C, Materials for optical and electronic devices
Year: 2016, Volume: 4, Issue: 5, Pages: 1111-1116
ISSN:2050-7534
DOI:10.1039/C5TC03206G
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1039/C5TC03206G
Verlag, lizenzpflichtig, Volltext: https://pubs.rsc.org/en/content/articlelanding/2016/tc/c5tc03206g
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Author Notes:Yvonne J. Hofstetter, Paul E. Hopkinson, Artem A. Bakulin, Yana Vaynzof
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Summary:One of the key advantages of metal oxide/polymer organic-inorganic hybrid photovoltaic devices is the possibility to control the photo-induced charge separation efficiency by interfacial modification. While a large variety of organic modifiers have been investigated, inorganic modification layers remain largely unexplored. Here, we investigate the model poly(3-hexathiophene)/ZnO system and show that by introducing a caesium carbonate interlayer, a simultaneous increase in all photovoltaic performance parameters can be achieved. While improved energy level alignment results in a significant increase in the open circuit voltage, the suppression of interfacial bound charge pairs formation causes a reduction in interfacial recombination losses and an increase in short circuit current. The overall power conversion efficiency is enhanced twelve fold, demonstrating the significant potential of inorganic modifiers for improving the performance of hybrid photovoltaic devices.
Item Description:Gesehen am 19.05.2020
Physical Description:Online Resource
ISSN:2050-7534
DOI:10.1039/C5TC03206G

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