Enhanced up-conversion emission of fluoride phosphor in the dual-fuel system under 1550 nm excitation. (April 2023)

• Record Type: Journal Article
• Authors: Hu, Feng; Lu, Liping; Lei, Bohan; Ning, Lin; Sun, Haiying; Zhang, Xiyan; Bai, Zhaohui; Mi, Xiaoyun
• Is Part Of: Optics & laser technology. Volume 159(2023)
• Publication Date: 2023-04
• Subjects: Up-conversion luminescence -- Alkali ion -- 1550 nm -- Fuel; Optics -- Periodicals; Lasers -- Periodicals; Electronic journals; 621.366
• DOI: 10.1016/j.optlastec.2022.108983
• Languages: English
• ISSNs: 0030-3992

Abstract

Highlights: Multi-component fluoride nanocrystal Pbx Nay-n Lin Yz F2x+y+3z+3m : Er 3+ m with a response in the 1.5 μm band was synthesized by the low temperature combustion synthesis method. When the concentration of Li + ion is 2.07 mol%, the up-conversion luminescence intensity is obviously improved. The hypothetical physical mechanism model for the luminescence intensity of Li + ion enhanced materials was confirmed. Innovatively established a dual-fuel system, and systematically analyzed the heat release characteristics of each fuel system, and prepared nanocrystals with high luminous intensity and fine particles. Abstract: A 1.5 μm multi-component fluoride nanocrystal Pbx Nay-n Lin Yz F2x+y+3z+3m : Er 3+ m was synthesized by the low temperature combustion synthesis (LCS) method. On the basis of the orthogonal experiment and optimization experiment, Li + ion was introduced into the matrix and the dual-fuel system was established, and the up-conversion luminescence intensity was enhanced by changing the matrix composition and improving the process methods. The results show that when the concentration of Li + ion is 2.07 mol%, the fuel consumption in the dual-fuel system is 2.2 stoi., 0.7 stoi., the up-conversion luminescence intensity is obviously improved. The structure and morphology of samples were analyzed by the X-ray diffraction (XRD) and scanning electron microscopy (SEM), and a schematic model of physical mechanism for the luminescence intensity of Li + ion enhanced materials was confirmed. The exothermic characteristics of the dual-fuel system were analyzed by the differential scanning calorimetry and thermogravimetric analysis (DSC-TGA). The influence of the introduction of Li + ion and the dual-fuel system on the luminescence intensity was discussed in detail.