TELKOMNIKA Telecommunication Computing Electronics and Control
Study of Ba2Li2Si2O7:Eu2+ phosphor for enhancing the luminous flux of white LEDs
Dublin Core
Title
TELKOMNIKA Telecommunication Computing Electronics and Control
Study of Ba2Li2Si2O7:Eu2+ phosphor for enhancing the luminous flux of white LEDs
Study of Ba2Li2Si2O7:Eu2+ phosphor for enhancing the luminous flux of white LEDs
Subject
Ba2Li2Si2O7:Eu2+
Color homogeneity
Luminous flux
Monte Carlo theory
WLEDs
Color homogeneity
Luminous flux
Monte Carlo theory
WLEDs
Description
The best spectrum characteristics and photometric productivities of white
light emitting diode (WLED) device possessing light emitting diodes (LEDs)
in red rather than phosphor pc/R-WLEDs with the hue fidelity index
(Rf) > 97 for correlated color temperatures (CCTs) between 2700 K and
6500 K were attained using the illumination effectiveness (LE) model.
We demonstrate four practical pc/R-WLEDs that have indices of Rf and LE
of 96–97 and 120–124 lm/W, respectively, under CCT values measured at
2969 K, 4468 K, 5682 K, as well as 6558 K. These LED packages use blue
and red LEDs, also phosphors in green as well as yellow, with respective
wavelengths of 448 nm, 650 nm, 507 nm, and 586 nm. In the comparison
between phosphor-transformed WLED devices (with phosphor conversion)
and quantum-dot WLED devices (QD-WLEDs), pc/R-WLEDs make an
outstanding performance in competitiveness for high hue generation,
particularly under small CCT values, and could eventually replace current
pc-WLEDs.
light emitting diode (WLED) device possessing light emitting diodes (LEDs)
in red rather than phosphor pc/R-WLEDs with the hue fidelity index
(Rf) > 97 for correlated color temperatures (CCTs) between 2700 K and
6500 K were attained using the illumination effectiveness (LE) model.
We demonstrate four practical pc/R-WLEDs that have indices of Rf and LE
of 96–97 and 120–124 lm/W, respectively, under CCT values measured at
2969 K, 4468 K, 5682 K, as well as 6558 K. These LED packages use blue
and red LEDs, also phosphors in green as well as yellow, with respective
wavelengths of 448 nm, 650 nm, 507 nm, and 586 nm. In the comparison
between phosphor-transformed WLED devices (with phosphor conversion)
and quantum-dot WLED devices (QD-WLEDs), pc/R-WLEDs make an
outstanding performance in competitiveness for high hue generation,
particularly under small CCT values, and could eventually replace current
pc-WLEDs.
Creator
Ha Thanh Tung, Huu Phuc Dang
Source
http://telkomnika.uad.ac.id
Date
Jan 10, 2023
Contributor
peri irawan
Format
pdf
Language
english
Type
text
Files
Collection
Citation
Ha Thanh Tung, Huu Phuc Dang, “TELKOMNIKA Telecommunication Computing Electronics and Control
Study of Ba2Li2Si2O7:Eu2+ phosphor for enhancing the luminous flux of white LEDs,” Repository Horizon University Indonesia, accessed March 14, 2025, https://repository.horizon.ac.id/items/show/4554.
Study of Ba2Li2Si2O7:Eu2+ phosphor for enhancing the luminous flux of white LEDs,” Repository Horizon University Indonesia, accessed March 14, 2025, https://repository.horizon.ac.id/items/show/4554.