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		  pdf 

ABSTRACT

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

AUTHORS & AFFILIATIONS

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
E-mail: 		REFERENCIES

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