scholarly journals Electronic and optical properties of silicene on GaAs(111) with hydrogen intercalation: a first-principles study

RSC Advances ◽  
2021 ◽  
Vol 11 (26) ◽  
pp. 16040-16050
Author(s):  
Ting Yu ◽  
He Zhang ◽  
Dan Li ◽  
Yanwu Lu

In this paper, we investigated the electronic and optical properties of silicene on GaAs(111) substrates (silicene/HGaAs) on the basis of first-principles density functional theory.

2016 ◽  
Vol 4 (42) ◽  
pp. 10082-10089 ◽  
Author(s):  
Xianping Chen ◽  
Xiang Sun ◽  
D. G. Yang ◽  
Ruishen Meng ◽  
Chunjian Tan ◽  
...  

The structure along with the electronic and optical properties of a SiGe/BN monolayer heterostructure were theoretically researched using density functional theory calculations.


2014 ◽  
Vol 900 ◽  
pp. 203-208 ◽  
Author(s):  
Ting Ting Shao ◽  
Fu Chun Zhang ◽  
Wei Hu Zhang

The structural, electronic, and optical properties of rutile-type SnO2 are studied by plane-wave pseudopotential density functional theory (DFT) with GGA, LDA, B3LYP and PBE0 respectively. The computing results show that the band gap getting from PBE0 and B3LYP is much more consistent with the available experimental data than that from GGA and LDA, no matter what the latter use ultra-soft pseudopotential or norm conserving pseudopotential. However, the density of state, real part and imaginary part of dielectric function calculating from every type is basically similar in qualitative analysis.


RSC Advances ◽  
2017 ◽  
Vol 7 (83) ◽  
pp. 52449-52455 ◽  
Author(s):  
Qiang Zhao ◽  
Zheng Zhang ◽  
Xiaoping Ouyang

We investigated the effects of high pressure on the electronic structure and optical properties of a CsI crystal through a first-principles calculation method based on density functional theory.


RSC Advances ◽  
2016 ◽  
Vol 6 (56) ◽  
pp. 50867-50873 ◽  
Author(s):  
Golibjon R. Berdiyorov ◽  
Mohamed El-Amine Madjet

Optoelectronic properties of penta-graphene, penta-SiC2 and penta-CN2 are studied using density functional theory. Penta-SiC2 shows enhanced electronic transport and optical properties compared to the other systems.


2016 ◽  
Vol 18 (21) ◽  
pp. 14317-14322 ◽  
Author(s):  
Qi-Jun Liu ◽  
Zhen Jiao ◽  
Fu-Sheng Liu ◽  
Zheng-Tang Liu

The effects of X-doping (X = S, Se, Te and Po) on the structural, electronic and optical properties of hexagonal CuAlO2 were studied using first-principles density functional theory.


RSC Advances ◽  
2019 ◽  
Vol 9 (70) ◽  
pp. 41058-41065 ◽  
Author(s):  
Tuan V. Vu ◽  
Hien D. Tong ◽  
Duy Phu Tran ◽  
Nguyen T. T. Binh ◽  
Chuong V. Nguyen ◽  
...  

In the present work, we investigate systematically the electronic and optical properties of Janus ZrSSe using first-principles calculations.


2017 ◽  
Vol 31 (23) ◽  
pp. 1750175 ◽  
Author(s):  
Margi Jani ◽  
Abhijit Ray

We investigated the electronic and optical properties of ZnO under the circumstances of isovalent anionic doping by sulfur. A pseudopotential implementation of density functional theory is applied within the local density approximation to examine the modification of band structure in wurtzite ZnO by sulfur substitution. Although Fermi level position does not change, a strong localization of Zn-[Formula: see text] orbital is found by S-doping. Optical properties and constants are found to strongly depend on the sulfur content at low photon energies.


RSC Advances ◽  
2021 ◽  
Vol 11 (36) ◽  
pp. 22264-22272
Author(s):  
Sean Nations ◽  
Ting Jia ◽  
Shengnian Wang ◽  
Yuhua Duan

The electronic and optical properties of orthorhombic (CH3NH3)BX3 (B = Sn, Pb; X = F, Cl, Br, I) were investigated by first-principles density functional theory.


2018 ◽  
Vol 20 (3) ◽  
pp. 1431-1439 ◽  
Author(s):  
F. Ersan ◽  
H. D. Ozaydin ◽  
E. Aktürk

Based on first-principles spin-polarized density functional theory, we investigate the effects of chalcogen composition on the structural, electronic, and optical properties of monolayer (where X and X′ = S, Se, Te) ordered alloys with values of x of 0, 0.167, 0.333, 0.500, 0.667, 0.833, and 1.


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