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Comparison between SEPs of CaCO3 and TiO2 in phosphor layer for better color uniformity and stable luminous flux of WLEDs with 7,000 K

Materials Science-Poland
Volume 40 (2022): Issue 1 (March 2022)
By:
Open Access
|May 2022

Figures & Tables

Fig. 1

(A) pc-LED model used in the research, (B) 2D schematic image of pc-LEDs model. SEPs, particles for scattering enhancement
(A) pc-LED model used in the research, (B) 2D schematic image of pc-LEDs model. SEPs, particles for scattering enhancement

Fig. 2

Comparison of scattering properties in pc-LEDs using CaCO3 and TiO2 with different diameters at 450 nm and 550 nm: (A) Scattering coefficient; (B) Average cosine of phase function; (C) Reduced scattering coefficient; (D) Scattering cross-section
Comparison of scattering properties in pc-LEDs using CaCO3 and TiO2 with different diameters at 450 nm and 550 nm: (A) Scattering coefficient; (B) Average cosine of phase function; (C) Reduced scattering coefficient; (D) Scattering cross-section

Fig. 3

The fluctuation of CCT deviation in pc-LEDs employing (A) CaCO3 and (B) TiO2. CCT, correlated color temperature
The fluctuation of CCT deviation in pc-LEDs employing (A) CaCO3 and (B) TiO2. CCT, correlated color temperature

Fig. 4

Luminous flux yielded from pc-LEDs with (A) CaCO3 and (B) TiO2
Luminous flux yielded from pc-LEDs with (A) CaCO3 and (B) TiO2
DOI: https://doi.org/10.2478/msp-2022-0008 | Journal eISSN: 2083-134X | Journal ISSN: 2083-1331
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Language: English
Page range: 1 - 8
Submitted on: Jul 11, 2021
Accepted on: Oct 12, 2021
Published on: May 25, 2022
Published by: Wroclaw University of Science and Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 times per year
Keywords:
WLEDs,
scattering enhancement,
luminous efficiency,
color quality,
CaCO,
TiO
Related subjects:
Materials sciences,
Materials sciences, other,
Nanomaterials,
Functional and smart materials,
Materials characterization and properties

© 2022 Phan Xuan Le, Tran Thanh Trang, Nguyen Doan Quoc Anh, Hsiao-Yi Lee, Le Van Tho, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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