TELKOMNIKA Telecommunication, Computing, Electronics and Control
The influences of calcium fluoride and silica particles on improving color homogeneity of WLEDs
Dublin Core
Title
TELKOMNIKA Telecommunication, Computing, Electronics and Control
The influences of calcium fluoride and silica particles on improving color homogeneity of WLEDs
The influences of calcium fluoride and silica particles on improving color homogeneity of WLEDs
Subject
CaF2, Luminous flux, Mie-scattering theory, SiO2
Description
The LEDs lighting device with phosphor ingredient (pcLEDs) is among
the most common lighting methods in recent years and evaluated by chromatic uniformity and lighting capacity. Therefore, we introduce the phosphor particles that can improve the scattering efficiency (SEPs) to apply in pcLEDs at 8500 K correlated color temperature (CCT) with the expectation to produce better pcLEDs by enhancing both quantity and quality of emitted light. Combining various materials such as CaF2 and SiO2 with yellow Y3Al5O12:Ce3+ phosphor composition in the pcLEDs simulation created by the LightTools program is the mechanism of this research. The simulated pcLEDs are tested and the results will be verified with Mie-scattering theory. The observation of the simulation leads to the conclusion about the scattering coefficients of SEPs at 455 nm and 595 nm wavelengths. The calculation showed that CaF2 is better for color homogeneity yet suffer from luminous flux deficiency as the concentration gets higher. On the other hand, SiO2 is the scattering enhancement material that can maintain high luminous flux regardless of its concentration.
the most common lighting methods in recent years and evaluated by chromatic uniformity and lighting capacity. Therefore, we introduce the phosphor particles that can improve the scattering efficiency (SEPs) to apply in pcLEDs at 8500 K correlated color temperature (CCT) with the expectation to produce better pcLEDs by enhancing both quantity and quality of emitted light. Combining various materials such as CaF2 and SiO2 with yellow Y3Al5O12:Ce3+ phosphor composition in the pcLEDs simulation created by the LightTools program is the mechanism of this research. The simulated pcLEDs are tested and the results will be verified with Mie-scattering theory. The observation of the simulation leads to the conclusion about the scattering coefficients of SEPs at 455 nm and 595 nm wavelengths. The calculation showed that CaF2 is better for color homogeneity yet suffer from luminous flux deficiency as the concentration gets higher. On the other hand, SiO2 is the scattering enhancement material that can maintain high luminous flux regardless of its concentration.
Creator
Anh-Minh D. Tran, Nguyen Doan Quoc Anh, Nguyen Thi Phuong Loan
Source
DOI: 10.12928/TELKOMNIKA.v18i5.13571
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
Anh-Minh D. Tran, Nguyen Doan Quoc Anh, Nguyen Thi Phuong Loan, “TELKOMNIKA Telecommunication, Computing, Electronics and Control
The influences of calcium fluoride and silica particles on improving color homogeneity of WLEDs,” Repository Horizon University Indonesia, accessed October 31, 2025, https://repository.horizon.ac.id/items/show/4034.
The influences of calcium fluoride and silica particles on improving color homogeneity of WLEDs,” Repository Horizon University Indonesia, accessed October 31, 2025, https://repository.horizon.ac.id/items/show/4034.