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TELKOMNIKA Telecommunication, Computing, Electronics and Control
Investigation on the application of ZnO nanostructures to improve the optical performance of white light-emitting diodes
Though combining blue LED chips with yellow phosphor has been the most
common method in white light-emitting diode (WLED) production, the
attained angular correlated color temperature (CCT) uniformity is still poor.
Thus, this article proposes to…
common method in white light-emitting diode (WLED) production, the
attained angular correlated color temperature (CCT) uniformity is still poor.
Thus, this article proposes to…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
The impacts of red-emitting phosphor Mg8Ge2O11F2:Mn4+ on the color rendering index of convex-dual-layer remote phosphor WLEDs at 5600 K
The poor color rendering index (CRI) induced by mono chip and phosphor
configuration in the conventional white-light light-emitting diode (LED)
urges for developments in both packaging and material, thus, a modern
lighting solution was introduced.…
configuration in the conventional white-light light-emitting diode (LED)
urges for developments in both packaging and material, thus, a modern
lighting solution was introduced.…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Enhancement of luminous flux and color quality of white
light-emitting diodes by using green (Y,Gd)BO3:Tb3+ phosphor
In the study, we analyzed and clarified the effect of green (Y,Gd)BO3:Tb3+
phosphor on chromatic homogeneity and optical performance of multi-chip
white light emitting diodes (MCW-LEDs). Thereby there is a solution to get
the best luminous…
phosphor on chromatic homogeneity and optical performance of multi-chip
white light emitting diodes (MCW-LEDs). Thereby there is a solution to get
the best luminous…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
MgCeAl11O19:Tb3+ and Mg8Ge2O11F2:Mn4+ in enhancing the color quality of remote phosphor LED
As the name infers, the triple-layer remote phosphor (TRP) has 3 phosphor
layers includes the red Mg8Ge2O11F2:Mn4+ phosphor layer on the top, the
green MgCeAl11O19:Tb3+ phosphor layer in the middle, and the yellow
YAG:Ce3+ layer at the bottom and…
layers includes the red Mg8Ge2O11F2:Mn4+ phosphor layer on the top, the
green MgCeAl11O19:Tb3+ phosphor layer in the middle, and the yellow
YAG:Ce3+ layer at the bottom and…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Green-emitting Gd2O2S:Tb3+ and red-emitting Y3Al5O12:Cr3+ phosphors: a suitable selection for enhancing color quality of remote phosphor structure
This article demonstrates green-emitting phosphor Gd2O2S:Tb3+ and
red-emitting phosphor Y3Al5O12:Cr3+ application in the triple-layer phosphor WLED to enhance optical performance. The arrangement of phosphor layers in the WLED is red phosphor…
red-emitting phosphor Y3Al5O12:Cr3+ application in the triple-layer phosphor WLED to enhance optical performance. The arrangement of phosphor layers in the WLED is red phosphor…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Effects of BaSO4 nano-particles on the enhancement of the optical performance of white LEDs
The usage of BaSO4 nanoparticles on WLEDs luminous flux and color
uniformity improvements have been analyzed and demonstrated in this
manuscript. The mixture of BaSO4 and silicone placed on the yellow phosphor
layer benefits the internal light…
uniformity improvements have been analyzed and demonstrated in this
manuscript. The mixture of BaSO4 and silicone placed on the yellow phosphor
layer benefits the internal light…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
TiO2/silicone encapsulation film for achieving optical performance improvement of chip-on-board packaging LEDs
TiO2 nanoparticle and silicon composite has powerful effect of scattering, thus
it is famous in enhancing the scattered light in light-emitting diode (LED)
packages. To accomplish higher lighting performance in LED devices, a thin
encapsulation…
it is famous in enhancing the scattered light in light-emitting diode (LED)
packages. To accomplish higher lighting performance in LED devices, a thin
encapsulation…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
The application of dual-layer remote phosphor geometry in achieving higher color quality of WLEDs
If remote phosphor structures are put into comparison with conformal
phosphor or in-cup phosphor, their luminous flux are better, but the color
quality is not as elevated. This leads to an obvious need of a practical
solution to enhance color…
phosphor or in-cup phosphor, their luminous flux are better, but the color
quality is not as elevated. This leads to an obvious need of a practical
solution to enhance color…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
The analysis of MF resin and CaCO3 diffuser-loaded encapsulations to enhance the homogeneity of correlated color temperature for phosphor-converted LEDs
The most popular method used in the production of phosphor-converted LEDs
(pc-LEDs) is dispensing phosphor freely. However, this method is inferior in
generating good angular correlated color temperature (CCT) homogeneity.
Thus, in this article, a…
(pc-LEDs) is dispensing phosphor freely. However, this method is inferior in
generating good angular correlated color temperature (CCT) homogeneity.
Thus, in this article, a…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Utilizing CaCO3, CaF2, SiO2, and TiO2 phosphors as approaches to the improved color uniformity and lumen efficacy of WLEDs
The two elements that are most favorable in the quality evaluation for
phosphor-converted LEDs (pcLEDs) these days are the chromatic
homogeneity and the lumen output. In this study, a thorough research on
enhancing color uniformity and luminous…
phosphor-converted LEDs (pcLEDs) these days are the chromatic
homogeneity and the lumen output. In this study, a thorough research on
enhancing color uniformity and luminous…