Optical and electronic properties of pure and fully hydrogenated SiC and GeC nanosheets: first-principles study

被引：0
作者：
Soleyman Majidi
Negin Beryani Nezafat
D. P. Rai
Amine Achour
Hassan Ghaziasadi
Amin Sheykhian
Shahram Solaymani
机构：
[1] Islamic Azad University,Department of Physics, College of Technical and Engineering, Saveh Branch
[2] Islamic Azad University,Young Researchers and Elite Club, West Tehran Branch
[3] Pachhunga University College,Department of Physics
[4] University of Namur,LISE Laboratory, Research Centre in Physics of Matter and Radiation (PMR)
[5] Islamic Azad University,Department of Electrical Engineering, College of Technical and Engineering, Saveh Branch
[6] Payame Noor University (PNU),Department of Physics
来源：
Optical and Quantum Electronics | 2018年 / 50卷
关键词：
SiC and GeC nanosheets; Ab initio studies; DFT; Optical and electronic properties; Electric field;
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摘要：
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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