2020   02   en   p.23-26 T.Y. Orujov1,2,
Characterization of optical parameters and evaluation of the quantum yield of the led phosphor layer


This paper studies absolute photoluminescence as well as the quantum yield of phosphors (YAG: Ce) used in the manufacture of LEDs. The interactions between light and phosphor samples with and without silicone dispersion were investigated, since the optical properties of luminescent materials have a great influence on the efficiency of LEDs. From the calculations of the reflected, absorbed and transmitted radiation in the phosphor, the quantum yield of the phosphor was evaluated.

Keywords: LED, phosphor, luminescence spectrum, quantum yield
PACS: 42.25.Bs, 78.55.−m, 78.66.Sq

Received: 10.09.2020


1. G.M. Abdullayev Institute of Physics, Azerbaijan National Academy of Sciences, Baku, Azerbaijan
2. Research and Development Center for High Technologies, Ministry of Transport, Communications and High Technologies

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