Host composition dependent tunable multicolor emission in the single-phase Ba2(Ln1−zTbz)(BO3)2Cl:Eu phosphors

Xia, Zhiguo; Zhuang, Jiaqing; Meijerink, Andries; Jing, Xiping

doi:10.1039/c3dt32609h

Cited by 98 publications

(58 citation statements)

References 55 publications

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“…R c is defined as the distance between dopant ions in which the energy transfer is most efficient and the probability of energy transfer is the same with that of emission from the luminescence center. The value of R c can be determined by the Blasse equation (3) as follows [24],…”

Section: Resultsmentioning

confidence: 99%

Solid-state reaction preparation and photoluminescence properties of Na2Ba6(Si2O7)(SiO4)2:Eu2+ phosphors

Shi

Xia

2014

Materials Research Bulletin

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Section: Resultsmentioning

confidence: 99%

Solid-state reaction preparation and photoluminescence properties of Na2Ba6(Si2O7)(SiO4)2:Eu2+ phosphors

Shi

Xia

2014

Materials Research Bulletin

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“…In order to further investigate the luminescence dynamics of the samples, the lifetimes of Ce 3+ emission in LuBO 3 [32]. But the reason for such a high Tb 3+ content is unclear.…”

Section: Energy Transfer Studiesmentioning

confidence: 99%

Luminescent properties and energy transfer studies of color-tunable LuBO 3 : Ce 3+ /Tb 3+ /Eu 3+ phosphors

Zhang

Song

et al. 2016

Materials Research Bulletin

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“…Next generation solid-state lighting technology mainly focusing towards the fabrication of white light emitting diodes (w-LEDs) that has the merits of pleasant color, steadfastness, prolongation, energy saving nature, low cost, less heating effect, low operating voltages, eco-friendly nature [1][2][3][4][5]. By reason of superior energy conversion, w-LEDs are looking to be a hopeful solid-state light sources compared to traditional incandescent and fluorescent lamps [6].…”

Section: Introductionmentioning

confidence: 99%

Enhanced luminous efficiency in Pr3+ activated Ca0.5La(MoO4)2 red phosphor with blue excitation for WLED applications

Krishnan

Thirumalai

Mahalingam

et al. 2015

J Mater Sci: Mater Electron

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In this article, we have investigated the downconversion luminescence properties of Ca 0.5 La(MoO 4 ) 2 doped with trivalent Pr 3? (substitute for La 3? site) and codoped with Mn 2? (substitute for Ca 2? site). The powder X-ray diffraction patterns confirm that the single crystalline phosphor powders belong to the scheelite-type tetragonal crystal structure. The photoluminescence (PL) excitation spectra of Ca 0.5 La(MoO 4 ) 2 :Pr 3? exhibits a charge transfer band centered at 276 nm along with three intense sharp absorption bands identified at 449, 475, and 488 nm which are attributed to the f-f electronic transitions of of Pr 3? , respectively. Upon optical excitation, the depopulation of excited 3 P 0 level into the 3 F 2 lower levels of Pr 3? is governed by radiative transfer of energy, as a result, high intense red emission peak was observed at 647 nm. The change in PL emission intensity as a function of Pr 3? concentrations, Mn 2? concentrations, and different excitation wavelengths have been investigated in detail. Further, the codoping of alkali metal chlorides MCl (M = Na, K, Li) into the Ca 0.5 La(MoO 4 ) 2 :Pr 3? phosphor greatly improves the luminescence intensity of the transition 3 P 0 ? 3 F 2 which can be explained by charge compensation effect. To ensure the colour richness and quality of its emission, the photometric parameters were estimated using spectral energy distribution functions of Ca 0.5 La(MoO 4 ) 2 :Pr 3? .The luminous efficacy of radiation for NaCl codoped Ca 0.5 La(MoO 4 ) 2 :Pr 3? phosphor was estimated to be 154 lm/W and the percentage of luminous efficiency is 23 %.

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Host composition dependent tunable multicolor emission in the single-phase Ba2(Ln1−zTbz)(BO3)2Cl:Eu phosphors

Cited by 98 publications

References 55 publications

Solid-state reaction preparation and photoluminescence properties of Na2Ba6(Si2O7)(SiO4)2:Eu2+ phosphors

Solid-state reaction preparation and photoluminescence properties of Na2Ba6(Si2O7)(SiO4)2:Eu2+ phosphors

Luminescent properties and energy transfer studies of color-tunable LuBO 3 : Ce 3+ /Tb 3+ /Eu 3+ phosphors

Enhanced luminous efficiency in Pr3+ activated Ca0.5La(MoO4)2 red phosphor with blue excitation for WLED applications

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