Fujian Institute of Materials published a review of high-power solid-state lighting/display glass-ceramic materials

In recent years, with the rapid development of high-quality green lighting and high-end display technologies, semiconductor solid-state light sources are gradually stimulating toward high energy density, high device output power, and high device stability. High-power blue chips, laser semiconductors, etc. The application of the energy density excitation method places higher requirements on the radiation resistance, thermal stability, etc. of the fluorescent material. Therefore, an inorganic fluorescent bulk material having high thermal conductivity, stable structure, and good optical output performance becomes a field. The research hotspot is very promising to replace the traditional phosphor-epoxy resin/silica gel encapsulation materials. Among them, the fluorescent glass-ceramics, a composite material composed of fluorescent microcrystals and specific component glass, has caused widespread scientific and business circles. Interest, It can have similar or even better optical properties to crystals, but similar to the advantages of simple preparation methods of glass materials, low cost, large-scale preparation, etc. Compared with other fluorescent bulk materials, it is rich in variety and flexible in design. , The cost is low, and the white light source constructed by it has a chromaticity adjustable.

Wang Yuansheng, Research Fellow of the Key Laboratory of Functional Nanostructure Design and Assemblage, Institute of Material Structure, Fujian Institute of Physics, Chinese Academy of Sciences, National Key Project, National Fund Project, Fujian Provincial Science and Technology Project, Haixi Research Institute “One-Three-Five” Planning Project and Associate Researcher Lin Hanghang Under the support of the Western Research Institute's “Spring Miao Talents” Special Fund, a series of research progresses have been made on high-power white-ceramics glass-ceramics fluorescent materials and their applications. The relevant results have been published in Laser & Photon. Rev. 2014, 8, 158; Laser& Photon. Rev. 2017, 11, 1700148; Chem. Mater. 2016, 28, 3515; ACS Appl. Mater. Interfaces 2014, 6, 22905; ACS Appl. Mater. Interfaces2014, 6, 21264; ACS Appl. Mater. Interfaces In 2015, 7, 21835 and other magazines, they have received extensive attention from domestic and foreign counterparts.

Recently, Wang Yuansheng's research team was invited to write an overview paper entitled Glass Ceramic Phosphors: Towards Long-Lifetime High-Power White Light Emitting Diode Applications – A Review in the international journal Laser & Photon. Rev. (doi: 10.1002/lpor.201700344). Lin Hang is the first author of this thesis. This review describes the preparation of fluorescent glass-ceramics, structure-activity relationship, performance control, packaging technology, and their applications in high-power solid-state lighting/display applications. The domestic and foreign research history, commented on the latest research progress, and provided unique insights on the future development direction. This review will provide a useful reference for the development of new high-performance fluorescent bulk materials and corresponding high-power, long-life solid state lighting/display light source technologies. This further promotes the further development of the research field.

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A summary of studies on high power solid state lighting/display glass-ceramic materials published by Fujian Institute of Materials