Simple thermal treatment approach for the synthesis of α-Zn2SiO4 nanoparticles. (August 2021)

• Record Type: Journal Article
• Authors: Zaid, Mohd Hafiz Mohd; Matori, Khamirul Amin; Yaakob, Yazid; Alibe, Ibrahim Mustapha
• Is Part Of: Optics & laser technology. Volume 140(2021)
• Publication Date: 2021-08
• Subjects: α-Zn2SiO4 -- Nanoparticles -- Calcination -- Crystal growth -- Optical properties; Optics -- Periodicals; Lasers -- Periodicals; Electronic journals; 621.366
• DOI: 10.1016/j.optlastec.2021.106991
• Languages: English
• ISSNs: 0030-3992

Abstract

Highlights: New synthesis technique for producing α-Zn2 SiO4 nanoparticles. The results of XRD, FESEM, EDX, FTIR, and Raman spectroscopy proved the growth of the α-Zn2 SiO4 crystal phase. The crystallite size of the nanoparticles calculated from XRD varies in the range around 21.60–32.15 nm. HRTEM revealed a better nanoparticle distribution and a relatively uniform spherical morphology with a size of 16.6–31.5 nm. Several broad emission peaks were observed at the violet, blue and the green region at wavelengths of 423, 447, 484, and 530 nm. Abstract: This study focuses on developing a new simple and low cost environmentally friendly synthesis technique for producing α-Zn2 SiO4 nanoparticles. To study the crystal growth, nanostructure and optical properties of the nanoparticles, further analysis was conducted using XRD, FESEM, EDX, FTIR, RAMAN, HRTEM, UV–vis and PL spectroscopy. The analysis confirmed the progress of α-Zn2 SiO4 with the increase of calcination temperature. Additionally, calcination at higher temperatures improved the crystallinity and revealed a uniform spherical morphology and better nanoparticle distribution. These findings were found to be in good agreement with XRD and FESEM results. The optical absorption spectra showed a reduction of the absorption intensity due to an improved crystallinity. Several broad emission peaks were observed at wavelengths of 423, 447, 484, and 530 nm with the increase in calcination temperature. The findings of this study are anticipated to result in finding a potential application for phosphor materials in optoelectronic applications.