Optical and electronic properties of pure and fully hydrogenated SiC and GeC nanosheets: first-principles study |
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| Authors: | Soleyman Majidi Negin Beryani Nezafat D P Rai Amine Achour Hassan Ghaziasadi Amin Sheykhian Shahram Solaymani |
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| Institution: | 1.Department of Physics, College of Technical and Engineering, Saveh Branch,Islamic Azad University,Saveh,Iran;2.Young Researchers and Elite Club, West Tehran Branch,Islamic Azad University,Tehran,Iran;3.Department of Physics,Pachhunga University College,Aizawl,India;4.LISE Laboratory, Research Centre in Physics of Matter and Radiation (PMR),University of Namur,Namur,Belgium;5.Department of Electrical Engineering, College of Technical and Engineering, Saveh Branch,Islamic Azad University,Saveh,Iran;6.Department of Physics,Payame Noor University (PNU),Tehran,Iran |
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| Abstract: | In this work, the electronic and linear optical properties of pure and fully hydrogenated SiC and GeC nanosheets have been studied using the full potential linearized augmented plane wave method within the density functional theory. Our study on SiC and GeC has confirmed their potential applications in electronic devices. The dielectric tensor is derived within the random phase approximation. The dielectric function, reflectivity, energy loss function and refraction index of these nanosheets for parallel (E||X) and perpendicular (E||Z) electric field polarization directions are well described. It is observed that hydrogenated nanosheets have semiconductor behavior with anisotropic optical spectra for both E||X and E||Z polarization direction. Also, hydrogenated nanosheets provide new electronic transitions between their neighboring atoms. |
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