Registration Number
0223U002717,
0120U101754
, R & D reports
Title
Physical-technological bases of creation of luminescent crystalline composites for powerful LED / LD white light sources
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Head
Nizhankovskyi Serhii V., Кандидат технічних наук
Registration Date
02-03-2023
Organization
Institute of Single Crystals of the National Academy of Sciences of Ukraine
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Experimental and theoretical studies of physico-chemical processes of crystallization, phase composition formation, microstructure, thermomechanical, optical, luminescent and light-technical characteristics of the composite based on eutectic Al2O3/YAG doped with cerium ions were conducted. The conditions for obtaining Al2O3/YAG:Ce eutectic ingots with a "Chinese writing" type microstructure in a carbon-containing gas environment by the HDC method were developed and optimized. The deviation of the dependence of microstructure parameters from the classical Jackson-Hunt model and the complex non-linear nature of their formation have been established. The study of patterns of light propagation in strongly scattering luminescent media and the test results demonstrated high functional parameters and prospects for the use of Al2O3/YAG:Ce eutectics for the creation of luminescent converters of powerful LED/LD white light sources.
Product Description
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BARANOV VIACHESLAV V.
Vovk oleg M.
Voloshyn Oleksandr V.
Gryn Leonid O.
Nizhankovskyi Serhii V.
Naydyonov Sergiy V.
SIRYK YURII V.
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2023-03-02
