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Date Published: 15/03/2021
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DOI: 10.51316/jst.148.etsd.2021.31.1.1
Issue
Vol. 31 No. 1 (2021)
Section
Research article
How to Cite
Bui, T. V. A., & Ngo, V. A. (2021). The influence of the compositions of reactants on the luminescence intensity of Zn2SiO4: Mn synthesized by sol-gel method using hydrochloric acid. JST: Engineering And Technology For Sustainable Development, 31(1), 1-5. https://doi.org/10.51316/jst.148.etsd.2021.31.1.1

The influence of the compositions of reactants on the luminescence intensity of Zn2SiO4: Mn synthesized by sol-gel method using hydrochloric acid

Thi Van Anh Bui1, , Viet Anh Ngo1
1 Institute of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam

Main Article Content

Abstract

The green emitting phosphor based on manganese activated zinc silicate was successfully synthesized by the sol – gel method using hydrochloric acid. The suitable molar ratio of the initial components is Zn(CH3COO)2: MnSO4: TEOS = 1.98: 0.02: 1 corresponding to the product formula Zn1.98Mn0,02SiO4. The suitable pH value for the gelation is 3, ratio of water phase: ethanol phase = 1:1 and the product when calcining the obtained gel at 1000 °C for 60 minutes has highest luminescence intensity. The synthesized phosphor consists of Zn2SiO4 with rhombohedral structure and emits a green light at the 525 nm wavelength when excited by the 325 nm UV radiation. The produced sample has spherical form with the particles size being 100 nm.

Keywords

Zn2SiO4, sol – gel method, zinc silicate phosphor, luminescence

Article Details

References

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