Composition Dependence of Structural and Electronic Properties of Quaternary InGaNBi
Journal article, 2019
To realize feasible band structure engineering and hence enhanced luminescence efficiency, InGaNBi is an attractive alloy which may be exploited in photonic devices of visible light and mid-infrared. In present study, the structural, electronic properties such as bandgap, spin-orbit splitting energy, and substrate strain of InGaNBi versus In and Bi compositions are studied by using first-principles calculations. The lattice parameters increase almost linearly with increasing In and Bi compositions. By bismuth doping, the quaternary InGaNBi bandgap could cover a wide energy range from 3.273 to 0.651 eV for Bi up to 9.375% and In up to 50%, corresponding to the wavelength range from 0.38-1.9 µm. The calculated spin-orbit splitting energy are about 0.220 eV for 3.125%, 0.360 eV for 6.25%, and 0.600 eV for 9.375% Bi, respectively. We have also shown the strain of InGaNBi on GaN; it indicates that through adjusting In and Bi compositions, InGaNBi can be designed on GaN with an acceptable strain.
Electronic
InGaNBi
Quaternary
Strain
First-principles
Author
[Person bdc32e20-3534-4e77-860a-a792c655305c not found]
Beijing University of Posts and Telecommunications (BUPT)
[Person 4bda7545-8abc-48e2-95a9-6a4d5686d125 not found]
Beijing University of Posts and Telecommunications (BUPT)
[Person 69131e11-4faf-43e0-b108-eb7ad7baa6d1 not found]
Beijing University of Posts and Telecommunications (BUPT)
[Person 689704c1-5f44-42c6-b22b-5c60e9749260 not found]
Sichuan University
[Person febc0142-cb76-4066-bb96-a68475a3d734 not found]
Beijing University of Posts and Telecommunications (BUPT)
[Person 809f5951-c787-4bfd-b827-a7e03d6d52aa not found]
Sichuan University
[Person 34ff7880-7fcb-4712-94e4-77094f7cdabc not found]
Chinese Academy of Sciences
Chalmers, Microtechnology and Nanoscience (MC2), Photonics
[Person 7844a655-0f2b-44b0-9cd0-ad4f7d1bb3ed not found]
Beijing University of Posts and Telecommunications (BUPT)
Nanoscale Research Letters
1931-7573 (ISSN) 1556-276X (eISSN)
Vol. 14 178Subject Categories
Other Physics Topics
Theoretical Chemistry
Condensed Matter Physics
DOI
10.1186/s11671-019-2968-0