Journal ArticleDOI
Polycrystalline thin film ZnSexTe1-x: preparation and properties
Reads0
Chats0
TLDR
ZnSexTe1-x films were prepared by co-evaporating ZnSe and ZnTe powders from a two-zone hot wall evaporation jig onto glass substrates.Abstract:
ZnSexTe1-x films were prepared by co-evaporating ZnSe and ZnTe powders from a two-zone hot wall evaporation jig onto glass substrates. The optical band gaps for different x were determined and this showed a bowing behaviour. The refractive indices and extinction coefficients have been determined as a function of wavelength. Variations of surface roughness with composition and microstructural details were also reported. Grain boundary scattering effects were found to be a dominant factor controlling electron transport processes in these films.read more
Citations
More filters
Journal ArticleDOI
Microstructure and optical studies of electron beam evaporated ZnSe1−xTex nanocrystalline thin films
TL;DR: In this paper, the structure and optical properties of nanocrystalline thin films of ZnSe 1− x Te x (0.0, x ǫ ≥ 1.0) were examined using X-ray diffraction technique and revealed that the deposited films have polycrystalline zinc blend structure with lattice constant, a, increasing linearly from 0.55816 to 0.59989 nm as x varies from 0 to 1.
Journal ArticleDOI
Thickness-dependent nonlinear absorption behaviors in polycrystalline ZnSe thin films
TL;DR: In this paper, the life time of localized defect states on grain boundary was found to be ~ 3 ns from ultrafast pump-probe spectroscopy for polycrystalline ZnSe thin films.
Journal ArticleDOI
Optical characterization of polycrystalline ZnSe1−xTex thin films using variable angle spectroscopic ellipsometry and spectrophotmetery techniques
TL;DR: In this article, the optical properties of polycrystalline ZnSe1−xTex (0.0≤x≤1.0) thin films were compared using variable angle spectroscopic ellipsometry (VASE) and spectrophotometry.
Journal ArticleDOI
Metalorganic chemical vapor deposition of ZnSe films on glass and GaAs(111) substrates
TL;DR: In this paper, the authors studied the low-temperature growth and doping of polycrystalline ZnSe by MOCVD using ditertiary-butylselenide (DtBSe) and dimethylzinc-triethylamine (DMZn-TEN) precursors.
Journal ArticleDOI
Structural and optical analyses of polycrystalline Zn1−xSbxSe thin films prepared by resistive heating technique
Rashad Rashid,Arshad Mahmood,U. Aziz,A. Shah,Zahid Ali,Q. Raza,Abdul Malik,Muhammad Asim Rasheed +7 more
TL;DR: In this paper, the influence of Sb doping on the structural and optical properties of Zn 1− x Sb x Se (0,⩽, x ǫ⩾ 0.15) thin films prepared by thermal evaporation technique on glass substrate was reported.
References
More filters
Journal ArticleDOI
Interpretation of the temperature-dependent behaviour of the emission from isoelectronic tellurium centres in epitaxial ZnSe1-xTex
TL;DR: In this paper, the authors investigated the emission from isoelectronic tellurium centres in metal-organic chemical vapour deposition ZnSe1-xTex with photoluminescence and photolumininescence excitation spectroscopy.