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PHOTOLUMINESCENT PROPERTIES OF THE PEROVSKITE CsPbBr3 NANOCRYSTALS BASED PHOSPHOR COMBINED WITH VIOLET LEDS
https://doi.org/10.47612/0514-7506-2022-89-5-662-667
Abstract
In the context of development of LED luminaries with antibacterial effect but without harmful effects on human health, the characteristics of an LED lighting system consisting of a commercial violet LED and a green phosphor based on CsPbBr3 nanocrystals are studied. Internal efficiency of the nanocrystalline phosphor in a silicone compound was found to exceed 40% falling down noticeably because of heating for electric current of the order of 0.1 A (excitation intensity of the order of 0.1 W/mm2). This nondesirable feature can be diminished using remote phosphor design of luminaries as well as by rising thermal stability of nanocrystals with chemical techniques.
About the Authors
L. L. Trotsiuk
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Belarus
Belarus
Minsk
E. S. Ton
Center of LED and Optoelectronic Technologies of the National Academy of Sciences of Belarus
Belarus
Belarus
Minsk
V. I. Tsvirka
Center of LED and Optoelectronic Technologies of the National Academy of Sciences of Belarus
Belarus
Belarus
Minsk
L. N. Survilo
Center of LED and Optoelectronic Technologies of the National Academy of Sciences of Belarus
Belarus
Belarus
Minsk
S. I. Lishik
Center of LED and Optoelectronic Technologies of the National Academy of Sciences of Belarus
Belarus
Belarus
Minsk
O. S. Kulakovich
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Belarus
Belarus
Minsk
A. A. Ramanenka
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Belarus
Belarus
Minsk
V. V. Krukov
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Belarus
Belarus
Minsk
Yu. V. Trofimov
Center of LED and Optoelectronic Technologies of the National Academy of Sciences of Belarus
Belarus
Belarus
Minsk
S. V. Gaponenko
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Belarus
Belarus
Minsk
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Review
For citations:
Trotsiuk L.L., Ton E.S., Tsvirka V.I., Survilo L.N., Lishik S.I., Kulakovich O.S., Ramanenka A.A., Krukov V.V., Trofimov Yu.V., Gaponenko S.V. PHOTOLUMINESCENT PROPERTIES OF THE PEROVSKITE CsPbBr3 NANOCRYSTALS BASED PHOSPHOR COMBINED WITH VIOLET LEDS. Zhurnal Prikladnoii Spektroskopii. 2022;89(5):662-667. (In Russ.) https://doi.org/10.47612/0514-7506-2022-89-5-662-667
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