Tuning the binding energy of excitons in the MoS2 monolayer by molecular functionalization and defective engineering

2020 ◽  
Vol 22 (21) ◽  
pp. 11936-11942
Author(s):  
Kangli Wang ◽  
Beate Paulus
Keyword(s):  
Absorption Spectrum ◽  
Binding Energy ◽  
Optical Absorption ◽  
Band Gap ◽  
Optical Absorption Spectrum ◽  
Exciton Binding Energy ◽  
Electronic Band ◽  
Mos2 Monolayer ◽  
Electronic Band Gap

Using the DFT-GW-BSE method, we analyze how the electronic band gap, optical absorption spectrum and exciton binding energy of the MoS2 monolayer are influenced by NO and C3H3N3 molecules and S-defects.

Electronic band gap, excitonic binding energy, and electron-hole exchange energy of KI under high pressure

1993 ◽  
Vol 47 (12) ◽  
pp. 6931-6936 ◽  
Author(s):  
M. J. Lipp ◽  
W. B. Daniels
Keyword(s):  
High Pressure ◽  
Binding Energy ◽  
Band Gap ◽  
Exchange Energy ◽  
Electron Hole ◽  
Electronic Band ◽  
Electronic Band Gap

Hydrothermal Preparation of Flower-Like CuS Superstructure and its Optical Property

2013 ◽  
Vol 275-277 ◽  
pp. 2014-2017
Author(s):  
Bao Rui Jia ◽  
Ming Li Qin ◽  
Ai Min Chu ◽  
Ye Liu ◽  
Qi Ping Kang ◽  
...  
Keyword(s):  
Absorption Spectrum ◽  
Optical Property ◽  
Optical Absorption ◽  
Band Gap ◽  
Hydrothermal Method ◽  
Optical Absorption Spectrum ◽  
Average Thickness ◽  
Hydrothermal Preparation ◽  
3 Dimensional ◽  
Near Ir

The CuS flower-like superstructures were selectively and facilely synthesized by a hydrothermal method at 120 °C. The EDS, SEM, HRTEM and FFT results show that the CuS superstore has a well-defined uniform 3-dimensional flower-like morphology. These superstructures have sizes of about 500 nm and are built from several intersectional nanoplates, which have a mean length of about 500 nm and an average thickness of about 50 nm. Optical absorption spectrum of the CuS superstructure shows it has good absorption in the near-IR region and the band gap is 2.08 eV.

Tailored Electronic Band Gap and Valance Band Edge of Nickel Oxide via p-Type Incorporation

2021 ◽  
Vol 125 (13) ◽  
pp. 7495-7501
Author(s):  
Gang Wang ◽  
Jinju Zheng ◽  
Boyi Xu ◽  
Chaonan Zhang ◽  
Yue Zhu ◽  
...  
Keyword(s):  
Nickel Oxide ◽  
Band Gap ◽  
Band Edge ◽  
Electronic Band ◽  
Electronic Band Gap ◽  
P Type

scholarly journals Electron paramagnetic resonance and optical absorption spectrum of the pentacoordinated ferrihemoproteins.

1980 ◽  
Vol 255 (6) ◽  
pp. 2239-2242
Author(s):  
K. Kobayashi ◽  
M. Tamura ◽  
K. Hayashi ◽  
H. Hori ◽  
H. Morimoto
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Absorption Spectrum ◽  
Optical Absorption ◽  
Optical Absorption Spectrum ◽  
Paramagnetic Resonance ◽  
Electron Paramagnetic

scholarly journals Evidence of direct electronic band gap in two-dimensional van der Waals indium selenide crystals

2019 ◽  
Vol 3 (3) ◽  
Author(s):  
Hugo Henck ◽  
Debora Pierucci ◽  
Jihene Zribi ◽  
Federico Bisti ◽  
Evangelos Papalazarou ◽  
...  
Keyword(s):  
Band Gap ◽  
Van Der Waals ◽  
Indium Selenide ◽  
Two Dimensional ◽  
Electronic Band ◽  
Electronic Band Gap

Optical-absorption spectrum of indium in terms of the Ashcroft and Sturm theory

1980 ◽  
Vol 22 (12) ◽  
pp. 5980-5986 ◽  
Author(s):  
J. P. Pétrakian ◽  
M. Rasigni
Keyword(s):  
Absorption Spectrum ◽  
Optical Absorption ◽  
Optical Absorption Spectrum ◽  
Sturm Theory

Article

1998 ◽  
Vol 76 (4) ◽  
pp. 411-413
Author(s):  
Yixing Zhao ◽  
Gordon R Freeman
Keyword(s):  
Absorption Spectrum ◽  
Optical Absorption ◽  
Temperature Dependence ◽  
Optical Absorption Spectrum ◽  
Infrared Light ◽  
Solvated Electron ◽  
Solvated Electrons ◽  
Tert Butanol ◽  
Solvent Dependence ◽  
Increasing Temperature

The energy and asymmetry of the optical absorption spectrum of solvated electrons, es- , change in a nonlinear fashion on changing the solvent through the series HOH, CH3OH, CH3CH3OH, (CH3)2CHOH, (CH3)3COH. The ultimate, quantum-statistical mechanical, interpretation of solvated electron spectra is needed to describe the solvent dependence. The previously reported optical spectrum of es- in tert-butanol was somewhat inaccurate, due to a small amount of water in the alcohol and to limitations of the infrared light detector. The present note records the remeasured spectrum and its temperature dependence. The value of the energy at the absorption maximum (EAmax) is 155 zJ (0.97 eV) at 299 K and 112 zJ (0.70 eV) at 338 K; the corresponding values of G epsilon max (10-22 m2 aJ-1) are 1.06 and 0.74. These unusually large changes are attributed to the abnormally rapid decrease of dielectric permittivity of tert-butanol with increasing temperature. The band asymmetry at 299 K is Wb/Wr = 1.8.Key words: optical absorption spectrum, solvated electron, solvent effects, tert-butanol, temperature dependence.

scholarly journals Monitoring mechanical motion of carbon nanotube based nanomotor by optical absorption spectrum

2016 ◽  
Vol 109 (26) ◽  
pp. 263104 ◽  
Author(s):  
Baomin Wang ◽  
Xuewei Cao ◽  
Zhan Wang ◽  
Yong Wang ◽  
Kaihui Liu
Keyword(s):  
Absorption Spectrum ◽  
Carbon Nanotube ◽  
Optical Absorption ◽  
Optical Absorption Spectrum ◽  
Mechanical Motion
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