PERTANIKA JOURNAL OF TROPICAL AGRICULTURAL SCIENCE

 

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Optical Properties of Cu2O Thin Films Impregnated with Carbon Nanotube (CNT)

Oluyamo Sunday Samuel, Ajanaku Olanrewaju and Adedayo Kayode David

Pertanika Journal of Tropical Agricultural Science, Volume 30, Issue 1, January 2022

DOI: https://doi.org/10.47836/pjst.30.1.19

Keywords: Bandgap, Carbon-nanotube (CNT), Copper (I) Oxide (Cu2O), optical characterization, spray pyrolysis

Published on: 10 January 2022

This study investigates CNT-doped Cu2O thin film deposited by spray pyrolysis technique at a substrate temperature of 100°C. The samples were annealed at temperatures of 200°C and 230°C for 30 minutes. The effect of CNT doping on certain optical properties, such as extinction and absorption coefficients, a refractive index of doped Cu2O thin films were examined. The absorbance of the doped samples increases within the visible range and decreases in the ultraviolet range of the electromagnetic spectrum (EM). Both absorbance and extinction coefficients increased with temperature making the samples a good candidate for use as absorbance layer in device fabrication. In addition, there was an increase in direct bandgap with the increase in CNT concentration of the thin films. The result of the study revealed that CNT doping has a significant effect on the properties of Cu2O.

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ISSN 1511-3701

e-ISSN 2231-8542

Article ID

JST-2039-2020

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