TELKOMComparison of calcium carbonate and titania particles on
improving color homogeneity and luminous flux of WLEDsNIKA Telecommunication, Computing, Electronics and Control
Dublin Core
Title
TELKOMComparison of calcium carbonate and titania particles on
improving color homogeneity and luminous flux of WLEDsNIKA Telecommunication, Computing, Electronics and Control
improving color homogeneity and luminous flux of WLEDsNIKA Telecommunication, Computing, Electronics and Control
Subject
CaCO3, Luminous flux, Mie-scattering theory, TiO2
Description
In this paper, the experiments on phosphor-converted LEDs (pc-LEDs) with a correlated color temperature (CCT) of 8500K has been conducted with the scattering enhancement particles (SEPs) to achieve the higher color uniformity and emitted luminous flux of pc-LEDs. Moreover, this paper also introduced about choosing scattering enhancement particles (SEPs), including calcium carbonate (CaCO3) and titania (TiO2), and compared these particles’ properties by adding them into the yellow Y3Al5O12:Ce3+ phosphor compounding. Afterward, the LightTools program was applied to illustrate the optical simulation, and obtained results was analyzed and verified by applying the Mie-scattering theory. The scattering coefficients, the anisotropic scattering, the reduced scattering, and the scattering amplitudes at 455 nm and 595 nm are included in the scattering computation of SEPs. According to researched results, among the SEPs, TiO2 particles result in the highest value of color uniformity. However, a rise in their concentration is the cause of a sharp decline in luminous flux. Meanwhile, CaCO3 particles show the ability of reducing the deviated level in correlated color temperature by 620K if there is employed 30% of CaCO3 concentration. Hence, CaCO3 particles are the recommendation for achieving higher chromatic homogeneity and lumen output.
Creator
Thinh Cong Tran, Nguyen Doan Quoc Anh, Nguyen Thi Phuong Loan
Source
DOI: 10.12928/TELKOMNIKA.v18i5.13552
Publisher
Universitas Ahmad Dahlan
Date
October 2020
Contributor
Sri Wahyuni
Rights
ISSN: 1693-6930
Relation
http://journal.uad.ac.id/index.php/TELKOMNIKA
Format
PDF
Language
English
Type
Text
Coverage
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Files
Collection
Citation
Thinh Cong Tran, Nguyen Doan Quoc Anh, Nguyen Thi Phuong Loan, “TELKOMComparison of calcium carbonate and titania particles on
improving color homogeneity and luminous flux of WLEDsNIKA Telecommunication, Computing, Electronics and Control,” Repository Horizon University Indonesia, accessed February 5, 2025, https://repository.horizon.ac.id/items/show/4033.
improving color homogeneity and luminous flux of WLEDsNIKA Telecommunication, Computing, Electronics and Control,” Repository Horizon University Indonesia, accessed February 5, 2025, https://repository.horizon.ac.id/items/show/4033.