Abstract
Vanadium pentoxide V2O5 films were fabricated by way of electrochemical deposition technique for application as hole transport buffer layer in organic solar cell. A thin and uniform V2O5 films were successfully deposited on indium tin oxide-coated glass substrate. The characterization of surface morphology and optical properties of the deposition suggest that the films are suitable for photovoltaic application. Organic solar cell fabricated using V2O5 as hole transport buffer layer showed better devices performance and environmental stability than those devices fabricated with PEDOT:PSS. In an ambient device preparation condition, the power conversion efficiency increases by nearly 80 % compared with PEDOT:PSS-based devices. The devices lifetime using V2O5 buffer layer has improved by a factor of 10 over those devices with PEDOT:PSS.
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Acknowledgments
This work is partially supported by National Research Foundation (NRF) (Grant Numbers 92786 and 85589), South Africa. The authors are also thankful to members of staffs at Microscopy and Microanalysis Unit (MMU) in the School of Life Sciences, UKZN .
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Arbab, E.A.A., Mola, G.T. V2O5 thin film deposition for application in organic solar cells. Appl. Phys. A 122, 405 (2016). https://doi.org/10.1007/s00339-016-9966-1
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DOI: https://doi.org/10.1007/s00339-016-9966-1