Effect of Preparation and Reduction on Specific Surface Electrical Resistance of Thin Films Obtained from Graphene Oxide Dispersion
- Authors: Kornilov D.Y.1, Kasharina L.A.1
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Affiliations:
- OOO AkKo Lab
- Issue: Vol 10, No 5 (2019)
- Pages: 1072-1077
- Section: Electronic Engineering Materials
- URL: https://journals.rcsi.science/2075-1133/article/view/208074
- DOI: https://doi.org/10.1134/S2075113319050125
- ID: 208074
Cite item
Abstract
The effect of reducing agents and reduction conditions on the electrophysical characteristics of thin transparent conductive films obtained from an alcohol dispersion of graphene oxide (GO) by spin coating at different rotation speeds of the substrate (from 5000 to 7000 rpm) is investigated. Surface morphology of the films, light transmittance, structure of chemical bonds in the films, specific surface electrical resistance, and thickness of the films are determined. Films of multilayer reduced graphene oxide (RGO) with a thickness of 10 to 60 nm and a specific surface electrical resistance of 7.7 to 26.77 kΩ/cm2 and light transmission of 74 to 88%, which can be widely used in photovoltaics and sensor electronics, are obtained. It is established that the treatment of the samples under study in saturated ammonia vapor most effectively contributes to the reduction of the specific surface electrical resistance of the films.
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About the authors
D. Yu. Kornilov
OOO AkKo Lab
Author for correspondence.
Email: akkolab@gmail.com
Russian Federation, Moscow, 129110
L. A. Kasharina
OOO AkKo Lab
Email: akkolab@gmail.com
Russian Federation, Moscow, 129110