Year: 2024 | Month: November | Volume: 11 | Issue: 11 | Pages: 69-78
DOI: https://doi.org/10.52403/ijrr.20241109
Enhanced Optoelectronic Properties of Few-Layer Graphene for Transparent Conducting Electrode: Density Functional Theory Perspective
Erik Bhekti Yutomo1, Oki Ade Putra2, Suci Faniandari3, Dhani Nur Indra Syamputra4, Muhammad Fahmi5
1,2,3,4,5 Department of Physics, Faculty of Science and Mathematics, Diponegoro University, Semarang, 50275, Indonesia.
Corresponding Author: Erik Bhekti Yutomo
ABSTRACT
The challenge in utilizing graphene for transparent conducting electrodes (TCE) is to increase the electronic conductivity without significantly decreasing its transmittance. Forming a few-layer structure is an effective way to modify the electronic properties of graphene. In this paper, we used the density functional theory (DFT) method to study the effect of the number of few-layer graphene (FLG) layers on the electronic conductivity and transmittance. We find that increasing the number of layers leads to an increase in electronic conductivity. On the other hand, a decrease in transmittance was observed when the number of layers was increased. Based on the performance analysis, the optoelectronic properties of FLG with more than three layers were better than those of conventional TCE materials, such as indium tin oxide (ITO) and aluminium-doped zinc oxide (AZO). The calculated electronic conductivity and transmittance of a 4-layer FLG were 2.23×1019 (1/Ω.m.s) and 95.69%, respectively. This finding can be used as guidance for experimental research in developing graphene-based TCE materials.
Keywords: density functional theory, electronic conductivity, few-layer graphene, transmittance
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