Structural and Optical Study of Lithium Doped Sulphur Supported Reduced Graphene Oxide (LiX:S-rGO1-X) (0.4≤X≤0.6) Composite Electrode for Optoelectronics Applications
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Abstract
The goal of this study was to developed a conducting Lithium doped sulfur supported reduced graphene oxide composites using hydrothermal reduction technique approach that allows the presence of different weight concentration of Li ion in network of supported reduced graphene oxide for application as electrode material. Scanning electron microscopy, X-ray diffraction, and UV Spectrometry analysis were each used to evaluate the produced composites. From the findings, it was possible to predict that the presence of a nano-size additive Li in the network of the S-rGO composite significantly improve the charge transport and dielectric characteristics of the material at the percolation threshold. The optical energy band gaps for S-rGO, Li0.4:S-rGO0.6, and Li0.6:S-rGO0.4 are, respectively, 3.4 eV, 3.5 eV, and 3.6 eV. These values are optimal and favour achieving the threshold voltage for optoelectronic and energy storage application.
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