scholarly journals Indirect-To-Direct Band Gap Transition of One-Dimensional V2Se9: Theoretical Study with Dispersion Energy Correction

ACS Omega ◽  
2019 ◽  
Vol 4 (19) ◽  
pp. 18392-18397 ◽  
Author(s):  
Weon-Gyu Lee ◽  
Sudong Chae ◽  
You Kyoung Chung ◽  
Won-Sub Yoon ◽  
Jae-Young Choi ◽  
...  
Keyword(s):  
Band Gap ◽  
Theoretical Study ◽  
Dispersion Energy ◽  
One Dimensional ◽  
Direct Band Gap ◽  
Energy Correction ◽  
Direct Band

scholarly journals Indirect-to-direct band gap transition and optical properties of metal alloys of Cs2Te1−xTixI6: a theoretical study

RSC Advances ◽  
2020 ◽  
Vol 10 (60) ◽  
pp. 36734-36740
Author(s):  
Diwen Liu ◽  
Wenying Zha ◽  
Rusheng Yuan ◽  
Benyong Lou ◽  
Rongjian Sa
Keyword(s):  
Optical Properties ◽  
Band Gap ◽  
Theoretical Study ◽  
Metal Alloys ◽  
Double Perovskites ◽  
Direct Band Gap ◽  
Photovoltaic Applications ◽  
Direct Band

In recent years, double perovskites have attracted considerable attention as potential candidates for photovoltaic applications.

New One-Dimensional Material Nb2 Se9 : Theoretical Prediction of Indirect to Direct Band Gap Transition due to Dimensional Reduction

2018 ◽  
Vol 13 (2) ◽  
pp. 1800517 ◽  
Author(s):  
Weon-Gyu Lee ◽  
Sudong Chae ◽  
You Kyoung Chung ◽  
Seungbae Oh ◽  
Jae-Young Choi ◽  
...  
Keyword(s):  
Theoretical Prediction ◽  
Band Gap ◽  
Dimensional Reduction ◽  
One Dimensional ◽  
Direct Band Gap ◽  
Direct Band

ChemInform Abstract: Soluble Semiconductors AAsSe2 (A: Li, Na) with a Direct-Band-Gap and Strong Second Harmonic Generation: A Combined Experimental and Theoretical Study.

ChemInform ◽  
2010 ◽  
Vol 41 (24) ◽  
pp. no-no
Author(s):  
Tarun K. Bera ◽  
Joon I. Jang ◽  
Jung-Hwan Song ◽  
Christos D. Malliakas ◽  
Arthur J. Freeman ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Band Gap ◽  
Harmonic Generation ◽  
Theoretical Study ◽  
Second Harmonic ◽  
Direct Band Gap ◽  
Direct Band

Soluble Semiconductors AAsSe2(A = Li, Na) with a Direct-Band-Gap and Strong Second Harmonic Generation: A Combined Experimental and Theoretical Study

2010 ◽  
Vol 132 (10) ◽  
pp. 3484-3495 ◽  
Author(s):  
Tarun K. Bera ◽  
Joon I. Jang ◽  
Jung-Hwan Song ◽  
Christos D. Malliakas ◽  
Arthur J. Freeman ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Band Gap ◽  
Harmonic Generation ◽  
Theoretical Study ◽  
Second Harmonic ◽  
Direct Band Gap ◽  
Direct Band

Optical Studies of Poly (N-Carbazole) (PVK) Blending with Polyvinylpyrrolidone (PVP) Using Tauc/Davis-Mott Model

2013 ◽  
Vol 652-654 ◽  
pp. 527-531 ◽  
Author(s):  
A.N. Alias ◽  
T.I. Tunku Kudin ◽  
Z.M. Zabidi ◽  
M.K. Harun ◽  
Ab Malik Marwan Ali ◽  
...  
Keyword(s):  
Band Gap ◽  
Urbach Energy ◽  
Quartz Substrate ◽  
Optical Studies ◽  
Direct Band Gap ◽  
Mott Model ◽  
Blended Polymer ◽  
Electronic Parameters ◽  
Direct Band ◽  
Indirect Band Gap

The optical absorption spectra of blended poly (N-carbazole) (PVK) with polyvinylpyrrolidone (PVP) in various compositions are investigated. A doctor blade technique was used to coat the blended polymer on a quartz substrate. The electronic parameters such as absorption edge (Ee), allowed direct band gap (Ed), allowed indirect band gap (Ei), Urbach edge (Eu) and steepness parameter (γ) were calculated using Tauc/Davis-Mott Model. The results reveal that the Ee, Ed and Ei increase with increasing of PVP ratio. There also have variation changing in Urbach energy and steepness parameter.

Direct band gap optical emission from Ge islands grown on relaxed Si0.5Ge0.5/Si (100) substrate

2014 ◽  
Vol 115 (1) ◽  
pp. 013502 ◽  
Author(s):  
R. Aluguri ◽  
S. Manna ◽  
S. K. Ray
Keyword(s):  
Band Gap ◽  
Optical Emission ◽  
Direct Band Gap ◽  
Direct Band
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