Year: 2025
Type: article
Abstract: 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 ma-terial, respectively. Niobium pentachloride was employed as the dopant source. Energy-dispersive X-ray analysis con-firmed Nb incorporation. Field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and ultravio-let–visible spectroscopy (UV–Vis) analyses characterized the morphology, structure, and optics of the films, respective-ly. 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°, 33.48°, and 35.7° 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.
Source: Makara Journal of Science
Authors: Eswar, Kevin Alvin, Rostan, Nur Fairuz, Mohamad, Maryam, Md Akhir, Rabiatuladawiyah, Rasmidi, Rosfayanti, Guliling, Muliyadi, Azhar, Najwa Ezira, Buniyamin, Irmaizatussyehdany, Malek, Mohd Firdaus, Mahmood, Mohamad Rusop, Suhaimi, Husairi Fadzilah, Abdullah, Saifollah
Institutions: Universiti Teknologi MARA System, Universiti Teknologi MARA
Language: English
Topic: ZnO doping and properties
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
Funder: Universiti Teknologi MARA
Award: G3683287180
OpenAlex ID: W4409464131