Stability and morphology-dependence of Sc3+ ions incorporation and substitution kinetics within ZnO host lattice
Yükleniyor...
Dosyalar
Tarih
2015
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
ELSEVIER SCI
Erişim Hakkı
info:eu-repo/semantics/embargoedAccess
Özet
In this study, sol-gel spin coating route was carried out to prepare Scandium doped ZnO thin films with different controlled percentage (1-7%). Particularly, it has been demonstrated, through original conjoint morphological-structural and optical investigations, that some interesting physical properties were induced. Indeed, X-ray diffraction (XRD) analysis shows that (002) preferential crystalline plane for Sc doped ZnO films was kept along with ZnO hexagonal wurtzite structure, although Sc doping seemed to cause a decrease in crystallinity. Except for 1 at% Sc doping ratio, optical band gap changes reversely with Urbach energy with a decrease in optical gap and a broadening of the absorption tail. Ab-initio calculations of lattice dynamical properties outlined additional strong hybridization between Sc and O atoms and show the stability of Scandium doped ZnO.
Açıklama
Anahtar Kelimeler
Zinc Oxide, Scandium, Optical Properties, Single Oscillator Model, Urbach Tailing, Dielectric Constant, Amlouk-Boubaker Opto-Thermal, Expansivity Psi(AB)
Kaynak
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
WoS Q Değeri
N/A
Scopus Q Değeri
Q1
Cilt
39
