TY - JOUR
T1 - Electronic and optical properties of doped graphene
AU - Shih, Po Hsin
AU - Do, Thi Nga
AU - Gumbs, Godfrey
AU - Lin, Ming Fa
N1 - Funding Information:
The authors thank the Ministry of Science and Technology of Taiwan (R.O.C.) under Grant No. MOST 105-2112-M-017-002-MY2. T. N. Do would like to thank the Ton Duc Thang University.
Funding Information:
The authors thank the Ministry of Science and Technology of Taiwan (R.O.C.) under Grant No. MOST 105-2112-M-017-002-MY2 . T. N. Do would like to thank the Ton Duc Thang University. Appendix A
Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2020/4
Y1 - 2020/4
N2 - The diverse electronic and optical properties of doped graphene with chosen densities of Si, B, and N guest atoms are investigated with the use of the tight-binding model. The main characteristics of the energy dispersion are substantially modified by doping. This includes the opening of a band gap, a change in the number of energy subbands, and a shift in Fermi levels. The presence of different dopants in graphene greatly diversifies the optical-absorption spectra through changes in the spectral frequency, intensity, and absorption structures. Doping gives rise to more excitation channels, leading to unique spectral structures as well as fluctuation in the absorption frequency and intensity. Our theoretical predictions provide a clear understanding of the electronic and optical properties of graphene-related systems, which could be helpful in the designing of novel electronic, photonic and optoelectronic devices based on these materials.
AB - The diverse electronic and optical properties of doped graphene with chosen densities of Si, B, and N guest atoms are investigated with the use of the tight-binding model. The main characteristics of the energy dispersion are substantially modified by doping. This includes the opening of a band gap, a change in the number of energy subbands, and a shift in Fermi levels. The presence of different dopants in graphene greatly diversifies the optical-absorption spectra through changes in the spectral frequency, intensity, and absorption structures. Doping gives rise to more excitation channels, leading to unique spectral structures as well as fluctuation in the absorption frequency and intensity. Our theoretical predictions provide a clear understanding of the electronic and optical properties of graphene-related systems, which could be helpful in the designing of novel electronic, photonic and optoelectronic devices based on these materials.
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U2 - 10.1016/j.physe.2019.113894
DO - 10.1016/j.physe.2019.113894
M3 - Article
AN - SCOPUS:85076669812
SN - 1386-9477
VL - 118
JO - Physica E: Low-Dimensional Systems and Nanostructures
JF - Physica E: Low-Dimensional Systems and Nanostructures
M1 - 113894
ER -