TELKOMNIKA Telecommunication Computing Electronics and Control
For improvements in chromatic scales and luminescent fluxes of white lights: developing a dual-layer remote phosphor structure
Dublin Core
Title
TELKOMNIKA Telecommunication Computing Electronics and Control
For improvements in chromatic scales and luminescent fluxes of white lights: developing a dual-layer remote phosphor structure
For improvements in chromatic scales and luminescent fluxes of white lights: developing a dual-layer remote phosphor structure
Subject
Color rendering index
Dual-layer phosphor
Luminous flux
Mie-scattering theory
WLEDs
Dual-layer phosphor
Luminous flux
Mie-scattering theory
WLEDs
Description
This study compares red-phosphor LaOF:Eu3+ impacts on a single-film
remote phosphor configuration (SRPC) and a double-film remote phosphor
configuration (DRPC). Mie theory is used to demonstrate the relationship
between light flux and color quality. SRPC is a phosphor layer consisting of
LaOF:Eu3+ particles mixed with YAG:Ce3+. Meanwhile, DRPC is two
separate films of red and yellow phosphors. To increase scattering
properties, we added 5% SiO2 into phosphor layers. The differences in
structure affect significantly white light emitting diodes’ (WLEDs’) optical
properties. Attained figures and statistics show that the color rendering indices
(CRIs) increase along with the concentrations of both structures, and these
numbers are approximately similar. However, DPRC exhibits a color quality
scale (CQS) of 74 in all examined chromatic temperatures (5600 K − 8500 K),
which is greater than SRPC’s 71 at 8500 K. Besides, the luminous
efficiencies (LEs) in DRPC are more outstanding than that of SRPC, at
given LaOF:Eu3+ concentration percentages (2%−14%). To summarize,
DRPC offers greater benefits in luminous flux and color quality, compared
to SRPC. Choosing the proper red light phosphor concentration, on the other
hand, becomes a crucial aspect of achieving the ideal CQS and LEs.
remote phosphor configuration (SRPC) and a double-film remote phosphor
configuration (DRPC). Mie theory is used to demonstrate the relationship
between light flux and color quality. SRPC is a phosphor layer consisting of
LaOF:Eu3+ particles mixed with YAG:Ce3+. Meanwhile, DRPC is two
separate films of red and yellow phosphors. To increase scattering
properties, we added 5% SiO2 into phosphor layers. The differences in
structure affect significantly white light emitting diodes’ (WLEDs’) optical
properties. Attained figures and statistics show that the color rendering indices
(CRIs) increase along with the concentrations of both structures, and these
numbers are approximately similar. However, DPRC exhibits a color quality
scale (CQS) of 74 in all examined chromatic temperatures (5600 K − 8500 K),
which is greater than SRPC’s 71 at 8500 K. Besides, the luminous
efficiencies (LEs) in DRPC are more outstanding than that of SRPC, at
given LaOF:Eu3+ concentration percentages (2%−14%). To summarize,
DRPC offers greater benefits in luminous flux and color quality, compared
to SRPC. Choosing the proper red light phosphor concentration, on the other
hand, becomes a crucial aspect of achieving the ideal CQS and LEs.
Creator
Van Liem Bui, Nguyen Thi Phuong Loan, Hai Minh Nguyen Tran
Source
http://telkomnika.uad.ac.id
Date
Nov 23, 2022
Contributor
peri irawan
Format
pdf
Language
english
Type
text
Files
Collection
Citation
Van Liem Bui, Nguyen Thi Phuong Loan, Hai Minh Nguyen Tran, “TELKOMNIKA Telecommunication Computing Electronics and Control
For improvements in chromatic scales and luminescent fluxes of white lights: developing a dual-layer remote phosphor structure,” Repository Horizon University Indonesia, accessed September 21, 2024, https://repository.horizon.ac.id/items/show/4445.
For improvements in chromatic scales and luminescent fluxes of white lights: developing a dual-layer remote phosphor structure,” Repository Horizon University Indonesia, accessed September 21, 2024, https://repository.horizon.ac.id/items/show/4445.