Excitonic spectra and energy band structure of ZnAl2Se4 crystals
Source abstract
Abstract
Absorption, reflection and wavelength modulated reflection spectra were investigated in ZnAl2Se4 crystals. The energy positions of ground and excited states for three excitonic series (А, В and С) were determined. The main parameters of excitons and more precise values of energy intervals V1(Γ7)–C1(Γ6), V2(Γ6)–C1(Γ6), and V3(Γ7)–C1(Γ6) were estimated. Values of splitting due to crystal field and spin–orbital interaction were calculated. Effective masses of electrons (mC1∗) and holes (mV1∗, mV2∗, mV3∗) were estimated. Reflection spectra contours in excitonic region were calculated using dispersion equations. Optical functions for E > Eg from measured reflection spectra were assigned on the base of Kramers–Kronig relations.
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Research context
OpenAlex topics: Chalcogenide Semiconductor Thin Films · Quantum Dots Synthesis And Properties · Semiconductor Quantum Structures and Devices
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (15)
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1. Wide-gap AIIB2IIIC4VI semiconductors: optical and photoelectric properties, and potential applications
2. Defect engineering in II-III2-VI4 and related compounds10.7567/JJAPS.32S3.5 ↗
3. Electronic and nonlinear-optical properties of some mixed thiogallates, selenogallates, and tellurogallates as candidates for laser device applications10.1103/PhysRevB.39.10261 ↗
4. Optical properties of ZnAl2Se4, ZnAl2Se4:Co2+, and ZnAl2Se4:Er3+ single crystals10.1063/1.368224 ↗
5. Growth and electrical/optical properties of the photoconductive ZnAl2Se4 layers grown by hot wall epitaxy method
6. Optical properties of ZnAl2Se4, ZnAl2Se4:Co2+, and ZnAl2Se4:Er3+ single crystals10.3938/jkps.62.628 ↗
7. Growth of single crystals of rare earth chalcogenides10.1016/0022-0248(83)90021-0 ↗
8. Optical properties of undoped and Co2+-, Ho3+-, Er3+ and Tm3+ doped CaGa2S4, CaGa2Se4, CaIn2S4, and CaIn2Se4 single crystals10.3938/jkps.56.128 ↗
9. Absorption spectra of cobalt-doped α-ZnAl2S4 spinel type single crystals
10. Electronic band structure of ordered vacancy defect chalcopyrite compounds with formula II-III2-VI410.1103/PhysRevB.69.035201 ↗
11. Surabala Mishra, Structural, electronic and optical properties of chalcopyrite type semiconductors, A Thesis Submitted In Partial fulfillment of the Requirements for the Degree of Doctor of Philosophy in Physics, to the Department of Physics, National Institute of Technology, Rourkelamay, 2012.
12. Electronic and structural properties of AAl2Se4 (A = Ag, Cu, Cd, Zn) chalcopyrite semiconductors10.1016/j.jssc.2011.04.036 ↗
13. Polariton emission from crystals10.1016/0038-1098(72)90898-8 ↗
14. Exciton polariton dispersion in multinary compounds
15. Optical constants of CuGaSe2 and CuInSe210.1063/1.368772 ↗