Synthesis and Characterisation of reduced graphene Oxide thin films for their potential application in Perovskite Solar Cells
Authors: Ashwin Khadka, Manoj Pandey, Bhim Prasad Kafle
Abstract – Graphene and its derivatives have proved to be of use in wide range of sectors since its discovery and have also been applied in solar cell applications. In this study, we explored the possibility of using reduced graphene oxide (rGO) as a charge carrier (hole transport layer). The rGO was synthesized by reducing the graphene oxide (GO) which was produced from graphite by Hummer’s method. The film of GO was then prepared by spray pyrolysis process and reduced by four different methods (sodium borohydrate, hydrazine hydrate, hydrogen iodide (HI) and by thermal treatment. Then the reduction was confirmed by analysing XRD spectrum, Raman Spectrum, UV-Visible spectrum and FTIR spectrum. The observed features from the spectroscopic analysis infers us that GO reduced by using hydrazine as a reducing agent yields better rGO and indicates to be of use in solar cells. In future, we will explore the rGO produced by later method as a hole transporting layer or electron blocking layer in Perovskite Solar Cells.
Keywords: Graphite Oxide, Spray Pyrolysis, Chemical Exfoliation, Ultrasonication, Graphene Oxide, Reduced Graphene Oxide
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Published In: International Conference on Role of Energy for Sustainable Social Development in ‘New Normal’ Era (RESSD-2020)
Date of Conference: 28th-29th December 2020
Conference Location: Kathmandu, Nepal
Publisher: IEEE Power and Energy Society Nepal Chapter
Cite the paper as:
A. Khadka, M. Pandey, B. P. Kafle, “Synthesis and Characterisation of reduced graphene Oxide thin films for their potential application in Perovskite Solar Cells” International Conference on Role of Energy for Sustainable Social Development in ‘New Normal’ Era, 28th-29th December 2020, Kathmandu, Nepal