Reference for citation: Afonin K. N., Andreeva M. V., Soldatkin V. S., Tuev V. I., Ivanov А. А. Increasing the luminous efficiency of white LEDs by changing the chemical components of phosphor compositions. Journal of Instrument Engineering. 2023. Vol. 66, N 9. P. 741—749 (in Russian). DOI: 10.17586/0021-3454-2023-66-9-741-749.

Abstract. Results of choosing a component base for the development of a phosphor composition are presented. The influence of the composition of the phosphor coating on the characteristics of the LED light source is considered. Models of white LEDs are created and research tests of their lighting and colorimetric characteristics are carried out. Proposed phosphor compositions make it possible to achieve luminous efficiency values of the order of 200 lm/W.

Keywords: LED, phosphor, compound, LED phosphor composition, luminous flux, luminous efficiency, correlated color temperature

Acknowledgement: the study was supported by the Russian Science Foundation, grant No. 23-29-00169; https://rscf.ru/project/23-29-00169/.

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