Effect of plasma power on reduction of printable graphene oxide thin films on flexible substrates

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dc.contributor.authorBanerjee, I.
dc.contributor.authorMahapatra, S.K.
dc.contributor.authorPal, C.
dc.contributor.authorSharma, A.K.
dc.contributor.authorRay, A.K.
dc.date.accessioned2018-07-14T01:18:42Z
dc.date.accessioned2024-08-13T12:45:42Z
dc.date.available2018-07-14T01:18:42Z
dc.date.available2024-08-13T12:45:42Z
dc.date.issued2018
dc.description.abstractRoom temperature hydrogen plasma treatment on solution processed 300 nm graphene oxide (GO) films on flexible indium tin oxide (ITO) coated polyethylene terephthalate (PET) substrates has been performed by varying the plasma power between 20 W and 60 W at a constant exposure time of 30 min with a view to examining the effect of plasma power on reduction of GO. X-ray powder diffraction (XRD) and Raman spectroscopic studies show that high energy hydrogen species generated in the plasma assist fast exfoliation of the oxygenated functional groups present in the GO samples. Significant decrease in the optical band gap is observed from 4.1 eV for untreated samples to 0.5 eV for 60 W plasma treated samples. The conductivity of the films treated with 60 W plasma power is estimated to be six orders of magnitude greater than untreated GO films and this enhancement of conductivity on plasma reduction has been interpreted in terms of UV-visible absorption spectra and density functional based first principle computational calculations. Plasma reduction of GO/ITO/PET structures can be used for efficiently tuning the electrical and optical properties of reduced graphene oxide (rGO) for flexible electronics applications. ? 2018 IOP Publishing Ltd.en_US
dc.identifier.citationBanerjee, I., Mahapatra, S. K., Pal, C., Sharma, A. K., & Ray, A. K. (2018). Effect of plasma power on reduction of printable graphene oxide thin films on flexible substrates. Materials Research Express, 5(5). doi: 10.1088/2053-1591/aac04een_US
dc.identifier.doi10.1088/2053-1591/aac04e
dc.identifier.issn20531591
dc.identifier.urihttp://10.2.3.109/handle/32116/1305
dc.identifier.urlhttp://iopscience.iop.org/article/10.1088/2053-1591/aac04e/meta
dc.language.isoenen_US
dc.publisherInstitute of Physics Publishingen_US
dc.titleEffect of plasma power on reduction of printable graphene oxide thin films on flexible substratesen_US
dc.title.journalMaterials Research Express
dc.typeArticleen_US

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