Tracking optical properties of ZnO:Mg thin films: Experimental and first principles calculations
Küçük Resim Yok
Tarih
2022
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Sci Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
As low-cost transparent conducting oxides (TCO), ZnO based materials have been widely used in flat panels, sensors, glasses and transparent electronic systems. ZnO based thin films are preferable instead of other TCO materials such as Indium Tin Oxides (ITO) due to electrochemical stability, non-toxicity, low cost. The physical and chemical properties of ZnO based devices depend on the stoichiometry, amount of impurity (dopant), and deposition method. In this study Mg doped zinc oxide (MZO) thin films with doping ratio varying from 1% to 5% were deposited by sol-gel dip coating method to improve the physical characters by forming the grain size. Structural and optical properties were investigated by means of XRD analysis, ultraviolet-visible (UV-VIS) and photoluminescence (PL) spectroscopy. Moreover, DFTB + method was preferred to determine electronic properties based on structural information obtained from XRD analysis. Experimentally determined band-gaps were compared with theoretically calculated gap values in which oxygen vacancies are considered.
Açıklama
Anahtar Kelimeler
Photoluminescence, Dftb, Optical Band -Gap Energy, Crystal Defects, Uv -Vis Spectroscopy, Doped Zno, Sensing Properties, Zinc-Oxide, Al, Texture, Photoluminescence, Nanostructures, Temperature, Defects, Oxygen
Kaynak
Ceramics International
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
48
Sayı
13
