Stability and morphology-dependence of Sc3+ ions incorporation and substitution kinetics within ZnO host lattice

Yumak A., TURGUT G., Kamoun O., ÖZIŞIK H., DELİGÖZ E., Petkova P., ...Daha Fazla

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING, cilt.39, ss.103-111, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 39
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1016/j.mssp.2015.04.010
  • Dergi Adı: MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.103-111
  • Anahtar Kelimeler: Zinc oxide, Scandium, Optical properties, Single oscillator model, Urbach tailing, Dielectric constant, Amlouk-Boubaker opto-thermal, expansivity psi(AB), SI/AL HETEROJUNCTION DIODE, TOTAL-ENERGY CALCULATIONS, SNO2 THIN-FILMS, OPTICAL-PROPERTIES, SPATIAL EVOLUTION, AL-SC, TRANSPARENT, GROWTH, ABSORPTION, FLUORINE
  • Marmara Üniversitesi Adresli: Evet

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. (C) 2015 Elsevier Ltd. All rights reserved.