Temporal Luminescence of Broadband Light-Emitting Diodes and Their Use for Generating Customizable White Light

Rahman, Faiz; George, Anthony

doi:10.1080/15502724.2019.1707684

Cited by 3 publications

(2 citation statements)

References 25 publications

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“…Thus, Tb 3+ ion-doped phosphors can be potential for increasing the luminous output of a phosphor-converted WLED (pc-WLED). In this paper, the Tb 3+ -doped CaO phosphor is applied to fabricate the pc-WLED package with high scattering efficiency [13]- [15]. The impacts of CaO:Tb 3+ on the chromaticity and lumen performances of the WLEDs is investigated with various concentration of the green-phosphor concentration.…”

Section: Introductionmentioning

confidence: 99%

CaO:Tb<sup>3+ </sup> green-emitting phosphor for white light-emitted diode-phosphor applications: the improvement of light output intensity

Tung,

Nguyen Thi

2024

Bulletin EEI

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The use of CaO:Tb3+ with light green emission on for improvement of both luminescent output and chromatic fidelity of the white light emitted from a light-emitting diode (LED). The CaO:Tb3+ is combined with the yellow-emitting phosphor of YAG:Ce3+ to provide sufficient colored spectral proportion for the white light generation, enhancing the color performance. The phosphor combination is utilized for the three most applied LED structures: conformal, in-cup, and remote phosphor structures. The changes in optical properties of these three LEDs are monitored with adjustments in the proportion of CaO:Tb3+. The higher proportion of the green phosphor results in higher scattering efficiency in all structures, offering better color coordination and stronger luminous flux. The color quality scale is somehow reduced when CaO:Tb3+ concentration is more than a certain level. Therefore, depending on the phosphor configuration of the white light-emitting diode (WLED), the concentration of CaO:Tb3+ should be modified to achieve a good color rendition with improved color consistency and luminous properties.

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Section: Introductionmentioning

confidence: 99%

CaO:Tb<sup>3+ </sup> green-emitting phosphor for white light-emitted diode-phosphor applications: the improvement of light output intensity

Tung,

Nguyen Thi

2024

Bulletin EEI

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“…In our advancement of the distant-phosphor-layer packaging design, we select the PSS that got a phosphorus coating sprayed over the opposing site as an important element. Spraying is an effective method for producing a uniformly thick layer, which advantages large-scale production [12], [13]. The benefits includes better consistency as well as low price [14].…”

Section: Introductionmentioning

confidence: 99%

A novel phosphor structure for improving the luminous flux of white LEDs

Thảo

Nedoma

et al. 2022

Bulletin EEI

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This section focuses on the color uniformity and luminous production of multi-chip white-emitted LED lighting systems (MCW-LEDs) in improving illuminated performance. To accomplish the desired outcome, CaO:Sb3+ must be mixed with their phosphor compounding, which has been shown to have a massive impact on illuminating effectiveness. There is also evidence that the increasing of yellowish-green-emitted phosphorus CaO:Sb3+ concentration supports color homogeneity as well as luminescent effectiveness enhancements in MCW-LEDs featuring a 8500 K correlating colour temperature (CCT). Meanwhile, that rise in CaO:Sb3+ concentration leads to the gradually deteriorating color quality scale. Thus, if appropriate concentration and particle size of CaO:Sb3+ phosphor are determined, it is not hard to obtain such an excellent presentation in color uniformity, color quality scale and luminescence of MCW-LEDs.

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Diode laser-excited phosphor-converted light sources: a review

Rahman

2022

Opt. Eng.

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Temporal Luminescence of Broadband Light-Emitting Diodes and Their Use for Generating Customizable White Light

Cited by 3 publications

References 25 publications

CaO:Tb<sup>3+ </sup> green-emitting phosphor for white light-emitted diode-phosphor applications: the improvement of light output intensity

CaO:Tb<sup>3+ </sup> green-emitting phosphor for white light-emitted diode-phosphor applications: the improvement of light output intensity

A novel phosphor structure for improving the luminous flux of white LEDs

Diode laser-excited phosphor-converted light sources: a review

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