Academic Journal of Engineering and Technology Science, 2022, 5(3); doi: 10.25236/AJETS.2022.050308.
Zhibin Yu, Kang Li
School of Microelectronics and Artificial Intelligence, Kaili University, Kaili, Guizhou, 556011, China
According to the type of base materials, red luminescent materials can be divided into sulfide system, oxide and sulfur oxide system, nitride system, aluminate system, silicate system, tungstomolybdate system, etc. In this paper, the research status of different systems of red luminescent materials is analyzed. Sulfide system have been studied for the longest time, but have the disadvantage of being susceptible to deterioration and deliquescence when exposed to air. The oxide and sulfur oxide system has excellent properties and is a very good base materials, but the cost is high because all raw materials are high-purity rare earth oxides. Nitride system make up for the deficiencies of sulfide system and have broader excitation and emission wavelengths than sulfide or oxide system. The aluminate system has the characteristics of superior luminescent performance and low cost, which is worthy of further study. The physical and luminescence properties of silicate system are poor, and need to be further explored. The stable structure of tungstomolybdate system has good absorption of ultraviolet excitation light, which is beneficial to increase the emission efficiency and the excitation and emission energy of the luminescent center. The doping of Eu3+ makes it have better luminescence properties.
base type; red; luminescent material; the research status
Zhibin Yu, Kang Li. Analysis of the Research Status of Red Luminescent Materials with Different Base Types. Academic Journal of Engineering and Technology Science (2022) Vol. 5, Issue 3: 41-44. https://doi.org/10.25236/AJETS.2022.050308.
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