Estimation of WSe2 Layer Thickness using Reflectance Spectra and Comparison with Graphene based on Wavelength

Abstract

The purpose of this study is to calculate the WSe2 layer thickness using reflectance spectra and comparison with graphene using wavelength in the Novel 2D material reflectance spectra Using nanoHUB.org, the study’s data was gathered. According to clinicalcalc.com, samples were categorized as (N=20) for WSe2 layers and (N=20) for graphene layers. The total sample size was calculated while maintaining the following values: alpha error-threshold value = 0.05, enrollment ratio = 0.1, 95% confidence interval = 80%, and G-power = 80%. Comparison is done by independent sample test using SPSS software. There is a statistically significant difference in the thickness of the WSe2 layer and Graphene layer with (p=.001, p<0.05).WSe2 layer (3.4717) showed better results in comparison to the graphene layer (2.0669). The WSe2 layers has more thickness when compared to graphene layers.