Optical constants and exciton properties of ZnxCd1-xS

被引：9

作者：

Algarni, H. ^{[1
,2
]}

Bouarissa, N. ^{[3
]}

Khan, M. Ajmal ^{[1
]}

Al-Hagan, O. A. ^{[1
]}

Alhuwaymel, T. F. ^{[4
]}

机构：

[1] King Khalid Univ, Fac Sci, Dept Phys, POB 9004, Abha 61413, Saudi Arabia

[2] King Khalid Univ, RCAMS, POB 9004, Abha 61413, Saudi Arabia

[3] Univ Msila, Lab Mat Phys & Its Applicat, Msila 28000, Algeria

[4] KACST, Natl Ctr Nanotechnol, POB 6086, Riyadh 11442, Saudi Arabia

来源：

OPTIK | 2019年 / 193卷

关键词：

Optical properties; Exciton reduced mass; Exciton binding energy; Exciton Bohr radius; ZnxCd1-xS alloys; Visible to ultraviolet light; BAND-STRUCTURE; REFRACTIVE-INDEX; COMPOSITIONAL DISORDER; STRUCTURAL PARAMETERS; DIELECTRIC-CONSTANTS; PHONON FREQUENCIES; ENERGY GAPS; ALLOYS; CD1-XZNXTE; DEPENDENCE;

D O I：

10.1016/j.ijleo.2019.163022

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper we present optical and exciton properties of ZnxCd1-xS using a pseudopotential approach within an improved virtual crystal approximation which includes the alloy disorder effect. Features such as, refractive index, dielectric constants, exciton reduced mass, exciton binding energy and exciton Bohr radius have been investigated and their dependence on composition has been examined and discussed. All features of interest are found to vary monotonically and non-linearly with the Zn content. The results obtained in the present study may provide useful information for use of this alloy system in various device applications from visible to ultraviolet light.

引用

页数：7

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