Low-Temperature CVD-Grown Graphene Thin Films as Transparent Electrode for Organic Photovoltaics
Source abstract
Abstract
Good conductivity, suitable transparency and uniform layers of graphene thin film can be produced by chemical vapour deposition (CVD) at low temperature and utilised as a transparent electrode in organic photovoltaics. Using chlorobenzene trapped in poly(methyl methacrylate) (PMMA) polymer as the carbon source, growth temperature (Tgrowth) of 600 °C at hydrogen (H2) flow of 75 standard cubic centimetres per minute (sccm) was used to prepare graphene by CVD catalytically on copper (Cu) foil substrates. Through the Tgrowth of 600 °C, we observed and identified the quality of the graphene films, as characterised by Raman spectroscopy. Finally, P3HT (poly (3-hexylthiophene-2, 5-diyl)): PCBM (phenyl-C61-butyric acid methyl ester) bulk heterojunction solar cells were fabricated on graphene-based window electrodes and compared with indium tin oxide (ITO)-based devices. It is interesting to observe that the OPV performance is improved more than 5 fold with increasing illuminated areas, hinting that high resistance between graphene domains can be alleviated by photo generated charges.
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Research context
OpenAlex topics: Graphene research and applications · Organic Electronics and Photovoltaics · Thin-Film Transistor Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Center of Organic Electronics, University of Newcastle, Newcastle 2308, Australia
Department of Physics, College of Education for Pure Science, University of Tikrit, Tikrit 34001, Iraq
Australian Centre for Microscopy and Microanalysis, University of Sydney, Sydney 2006, Australia
Electrical & Computer Engineering, University of Alabama, Tuscaloosa, AL 35487, USA
Department of Physics, College of Education for Pure Science, University of Anbar, Ramadi 31001, Iraq
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