Invariant descriptors for intrinsic reflectance optimization

Baslamisli, Anil S.; Gevers, Theo

doi:10.1364/josaa.414682

Cited by 11 publications

(9 citation statements)

References 47 publications

(71 reference statements)

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“…A hue analyst called Laiko DT-100 along with its CCD detector was used to determine the commission international de i'eclairage or briefly called CIEchromatic coordinates applied in every specimen. The Hitachi 3010 dual-beam UV-VIS spectrometer paired with an incorporating sphere (Ø 60 mm) whose internal side was covered with barium sulfate (BaSO4) or Spectralon and polytetrafluoroethylene powder (PTFE), scattered reflection spectrum between 200-800 nm were obtained [14]- [16].…”

Section: Experimental Details 21 Characterization Of the Ca3si2o4n2:e...mentioning

confidence: 99%

The enhancement of the dual-layer phosphorus configuration in color uniformity and luminous flux of a light emitting diode

Dang

That

2022

IJEECS

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A solid-state process was used to generate the green phosphor Ca3Si2O4N2:Eu2+. The luminescence characteristics, dispersed reflection spectra, and heat quenching were investigated initially, followed by the white light emitting diodes (wLED’s) manufacture by the Eu2+ stimulated Ca3Si2O4N2 phosphor. Based on the concentration of ion Eu2+, a wide green emission range localized between 510 and 550 nm was seen in Eu2+ -doped Ca3Si2O4N2. In Ca3Si2O4N2, the best doping concentration of Eu2+ was 1 mol%. An electric multipolar interaction process conveys energy among Eu2+ ions, with a necessary conversion distance of around 30.08 Å. Blending a near-ultraviolet (n-UV) light emitting diodes (LED) which has a GaN basis (380 nm) with the blue BaMgAl10O17:Eu2+, the green Ca3Si2O4N2:Eu2+, and the red Ca3Si2O4N2:Eu2+ phosphors yielded a wLED with a 88.25 color-rendering indice Ra at 6029 K correlating color temperature. Ca3Si2O4N2:Eu2+ appears to be a promising option to apply as a converting phosphor in wLED applications.

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Section: Experimental Details 21 Characterization Of the Ca3si2o4n2:e...mentioning

confidence: 99%

The enhancement of the dual-layer phosphorus configuration in color uniformity and luminous flux of a light emitting diode

Dang

That

2022

IJEECS

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“…Accordingly, such an interaction could be defined using the emission-intensity differences connected with the emitting level with multipolar interaction. Dexter developed a formula [16], [17] to investigate the kind of nonradiative power transmission, which Ozawa and Jaffe adjusted to a more practical version [18], which is expressed as (1):…”

Section: Figure 1 Photograph Of Wledsmentioning

confidence: 99%

A new Ca15(PO4)2(SiO4)6:Eu2+ phosphor with green emission for use in n-UV based w-LEDs

Huu

That

2022

IJEECS

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We have produced a novel phosphor using Eu2+, which is green in color coupled to Ca15(PO4)2(SiO4)6 (abbreviated as Ca15P2Si6) by deriving it structurally from α-Ca2SiO4 with a typical solit reaction method. Additionally, the decrease of Eu2+ concentration as well as heat endurance is being studied. 330 nm is the wavelength at which the substance is stimulated. At 491nm, it attain the greatest radiation energy when filled with the ideal concentration of Eu2+, which is 0.5 mol%. The primary mechanism of concentration reduction is discovered to be the fast transfer of stimulation through exchanging coupling among stimulated Eu2+ ions. The heat activating power boundary has been determined to be 0.244 eV. Additionally, we assess the productivity of this matter by fabricating alight-emitting diodes (LED)with converted phosphor (pc-LED) and integrating a light-emitting diode (LED) with an InGaN-foundation near-ultraviolet and running it at currents between 50 mA and 300 mA. All of the efforts result in an optimal for pc-LED to be able to ecedewhite light-emitting diodes (WLED) implementations.

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“…The sensitizer was co-doped in phosphors to enhance Tb 3+ absorption. Ce 3+ not only has strong luminous characteristics with a wide band, but it can also function as a powerful sensitizer [5]. It is capable of effectively absorbing UV radiation and transmitting the energy to the luminous core, increasing the strength of the emission.…”

Section: Introductionmentioning

confidence: 99%

The impacts of green LaBSiO5: Tb3+, Ce3+ phosphor on lumen output of white LEDs

Tung¹,

Dang²,

That³

2023

Bulletin EEI

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The traditional solid-state technique was used to create LaBSiO5 phosphors doped with Ce3+ and Tb3+ at 1,100 °C. These phosphors' phase purity and luminous characteristics are looked at. Under ultraviolet (UV) light stimulation, LaBSiO5: Tb3+ phosphors emit bright green light, whereas LaBSiO5 samples incorporated with Ce3+ emit blue-violet light. With UV ray stimulation, LaBSiO5 samples incorporated with Ce3+ as well as Tb3+ emit blue-violet as well as green illumination. The 5d-4f shift for Ce3+ is responsible for the blue-violet radiation, while the 5D4→7F5 transition of Tb3+ is responsible for the green radiation. The mechanism for power conversion between Ce3+ and Tb3+ was examined since there is a spectral overlap among the stimulation line for Tb3+ and the emitting line for Ce3+.

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Invariant descriptors for intrinsic reflectance optimization

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Cited by 11 publications

References 47 publications

The enhancement of the dual-layer phosphorus configuration in color uniformity and luminous flux of a light emitting diode

The enhancement of the dual-layer phosphorus configuration in color uniformity and luminous flux of a light emitting diode

A new Ca15(PO4)2(SiO4)6:Eu2+ phosphor with green emission for use in n-UV based w-LEDs

The impacts of green LaBSiO<sub>5</sub>: Tb<sup>3+</sup>, Ce<sup>3+</sup> phosphor on lumen output of white LEDs

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