A novel approach to the synthesis of Zn2SiO4:Mn luminescent nanoparticles

被引：10
作者：
Naeimi, Alireza [1 ]
Arabi, Amir Masoud [2 ]
Merajifar, Vahide [3 ]
机构：
[1] Inst Color Sci & Technol, Dept Nanomat & Nanocoatings, Tehran, Iran
[2] Inst Color Sci & Technol, Dept Inorgan Pigments & Glazes, Tehran, Iran
[3] Iran Univ Sci & Technol, Sch Met & Mat Engn, Tehran 1311416846, Iran
来源：
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2019年 / 30卷 / 10期
关键词：
SOL-GEL SYNTHESIS; PHOTOLUMINESCENT PROPERTIES; HYDROTHERMAL SYNTHESIS; OPTICAL-PROPERTIES; ZNS; GREEN; MN2+; MORPHOLOGY; COMPOSITE; PHOSPHOR;
D O I：
10.1007/s10854-019-01241-z
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this study, manganese doped zinc sulfide nanoparticleswith luminescence properties (Mn2+ ions) were synthesized togetherwith silica-aerogel particles. Theeffect of temperature variations on the optical properties ofthe compositewas investigated. X-ray diffraction patterns (XRD) showed the transformation of ZnS (sphalerite) to Zn2SiO4 (willemite) after heat treatment. Both silica aerogel and as-deposited SiO2-ZnS:Mn nanocomposites contained nanoparticles with emission wavelength of up to 30nm. The heat treatment caused an obvious increase in the particle size to nanometer scale. Photoluminescence (PL) spectra revealed that ZnS:Mn possesses an emission peak at 590nm, which was quenched by increasing the Mn content above 2.5% mol. In the as-deposited SiO2-ZnS:Mn spectra, an extra peak in the blue region wasobserved which is related to the silica structure. However, the heat treatment led to the appearance of strong green emission peak at 527nm due to the formation of willemite which was quenched at higher temperatures due to the change of structure from willemite to tridymite.Finally, two luminescent inks were produced by as-deposited and heat treated SiO2-ZnS:Mn nanocomposites in water-based solvents as security inks.
引用
收藏
页码：9123 / 9132
页数：10
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