Effect of Niobium Dopant on ZnO Thin Films Prepared via the Sol-gel Spin Coating Method

• 出版年: MAKARA JOURNAL OF SCIENCE
• 主要な著者: Eswar, Kevin Alvin; Rostan, Nur Fairuz; Mohamad, Maryam; Akhir, Rabiatuladawiyah Md; Rasmidi, Rosfayanti; Guliling, Muliyadi; Azhar, Najwa Ezira; Buniyamin, Irmaizatussyehdany; Malek, Mohd Firdaus; Mahmood, Mohamad Rusop; Suhaimi, Husairi Fadzilah; Abdullah, Saifollah
• フォーマット: 論文
• 言語: English
• 出版事項: UNIV INDONESIA 2025
• 主題: Science & Technology - Other Topics
• オンライン･アクセス: https://www-webofscience-com.uitm.idm.oclc.org/wos/woscc/full-record/WOS:001440330500001

Thin films of zinc oxide (ZnO) and niobium (Nb)-doped ZnO were deposited on a glass substrate using the sol-gel spin coating method. Diethanolamine, isopropyl alcohol, and zinc acetate served as the stabilizers, solvent, and starting material, respectively. Niobium pentachloride was employed as the dopant source. Energy-dispersive X-ray analysis confirmed Nb incorporation. Field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and ultraviolet-visible spectroscopy (UV-Vis) analyses characterized the morphology, structure, and optics of the films, respectively. Both films, comprising nanoparticles, were visible in FESEM. Nb doping reduced the particle size from 44.2 nm to 35.8 nm. The XRD peaks at 31.23 degrees, 33.48 degrees, and 35.7 degrees indicate the (100), (002), and (101) orientations, respectively. Nb-doped ZnO exhibited enhanced visible-range transmission in UV-Vis analysis. However, UV spectrum transmission significantly decreased. Nb doping reduced the optical bandgap of ZnO from 3.30 eV to 3.27 eV.