Photoluminescence properties of (Ce3+, Mn2+)-codoped CaCO3 red phosphor

Nara, Jun-ichi; Adachi, Sadao

doi:10.1063/1.4779856

Cited by 32 publications

(20 citation statements)

References 55 publications

(51 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…23,24 The experimental and calculated X-ray diffraction patterns together with the differential signals for the as-prepared V1, C1 and A1 samples are represented in Fig. 4.…”

Section: Structural Characterizationmentioning

confidence: 99%

Eu(iii)/Eu(ii)-doped (Ca_0.7Sr_0.3)CO₃ phosphors with vaterite/calcite/aragonite forms as shock/temperature detectors

et al. 2014

View full text Add to dashboard Cite

A pure metastable Eu(III)-doped (Ca 0.7 Sr 0.3 )CO 3 vaterite phase has been obtained by the precipitation method. After thermal treatment of this phase, the carbonate crystallizes with a calcite structure.Moreover, with the incorporation of 30 mol% of Sr that tends to stabilize the aragonite structure, both vaterite and calcite phases are able to transform easily into this high-pressure form by mechanical treatment. Hence, for this single composition, the three allotropic forms are achieved and can be compared. Photoluminescence studies indicate the stabilization of the Eu ions in the carbonates obtained, whatever the allotropic form, in the trivalent oxidation state. Significantly different luminescence properties have been found depending on the carbonate structure, which are associated with the various local environments of the doping element. This offers the possibility to employ these Eu(III)-doped samples as shock and/or temperature detectors. In addition, the use of a CaH 2 reducing agent allowed reduction of the main part of the Eu(III) content into Eu(II) in the three different carbonate forms at low temperature. Photoluminescence studies were also performed in these Eu(II)-doped samples and show slightly different emission spectra for the three crystalline structures.

show abstract

“…23,24 The experimental and calculated X-ray diffraction patterns together with the differential signals for the as-prepared V1, C1 and A1 samples are represented in Fig. 4.…”

Section: Structural Characterizationmentioning

confidence: 99%

Eu(iii)/Eu(ii)-doped (Ca_0.7Sr_0.3)CO₃ phosphors with vaterite/calcite/aragonite forms as shock/temperature detectors

et al. 2014

View full text Add to dashboard Cite

show abstract

“…The XPS spectrum contains Ca, Zn, O, C, S and Mn signal. 23 As in the previous EDS testing result, we could not accurately determine the amount of Mn incorporated in the present XPS measurements because of the low sensitivity of the Mn signal. To further examine the crystal structure and sites in this compound, Rietveld structure renements of these typical samples have been performed using the GSAS program, and the nal renement patterns of the typical CaZnOS:Mn 2+ sample are shown in Fig.…”

Section: Resultsmentioning

confidence: 74%

Enhanced persistent properties of Mn²⁺ activated CaZnOS

Zheng

Zhang

et al. 2017

RSC Adv.

View full text Add to dashboard Cite

The red emitting CaZnOS:Mn 2+ long persistent phosphor was successfully prepared via a conventional high-temperature solid-state reaction method. The persistent luminescence emission of Mn 2+ -dopedCaZnOS phosphor was investigated for the first time. Rare-earth trivalent ions were used as co-dopants to obtain a brighter red afterglow and longer persistence time. The optical properties of the as-prepared samples have been investigated systematically by employing photoluminescence spectroscopy, persistent luminescence spectroscopy, afterglow decay curves and thermoluminescence curves. In light of the experimental results of this study, a possible mechanism of persistent luminescence was illustrated and discussed in detail. These investigations provide a new and efficient long persistent phosphor.

show abstract

“…An orange to red emission is basically an effect of a strong crystal field, whereas a weak crystal field usually gives a blue-green emission [1]. For comparison, a similar red emission has been observed in octahedrally coordinated Mn 2+ -doped phosphors such as CaCO3:Mn 2+ with maximum of emission band at 640 nm [30] or CaS:Mn 2+ with maximum emission band peaking around 580 nm [31,32]. The obtained average decay time τMn2+ of Ca0.96Mn0.04CN2 was 10.7(1) ms at 300 K, which is typical for the parity and spin forbidden 4 T1g( 4 G) → 6 A1g( 6 S) transition of Mn 2+ [11,33,34].…”

Section: Photoluminescence Properties Of Mn 2+ Doped Cacn2 Samplesmentioning

confidence: 69%

Synthesis and photoluminescence properties of Mn2+ doped Ca1-xSrxCN2 phosphors prepared by a carbon nitride based route

Rohello

Suffren

Merdrignac‐Conanec

et al. 2021

Journal of Solid State Chemistry

View full text Add to dashboard Cite

Mn 2+ doped Ca1-xSrxCN2 phosphors were synthesized by a solid-state reaction in only 1 h under NH3 atmosphere at 700 °C from doped calcium carbonate and carbon nitride as precursors. The samples were characterized by powder X-ray diffraction, scanning electron microscopy and their diffuse reflectance and luminescence properties were investigated in order to evaluate the potential of such systems as red phosphors. All pure and well-crystallized Mn 2+ doped samples exhibit broad red emission around 680 nm when excited at 270 nm at room temperature corresponding to the 4 T1g( 4 G) → 6 A1g( 6 S) transition. Maximum emission in CaCN2 : Mn is obtained for Mn 2+ content of 4 %mol and is stable up to 343 K and then shows a 20 % decrease at 393 K. Finally, the progressive substitution of Sr 2+ for Ca 2+ evidences a solid solution domain between CaCN2 and β-SrCN2 with continuous increase of the crystal lattice dimensions. However, such substitution has no impact on the wavelength emission but leads to a decrease of the luminescence efficiency of the phosphor.

show abstract

Photoluminescence properties of (Ce3+, Mn2+)-codoped CaCO3 red phosphor

Abstract: Articles you may be interested inNear-infrared quantum-cutting luminescence and energy transfer properties of Ca3(PO4)2:Tm3+,Ce3+ phosphors J.Vacuum ultraviolet spectroscopic properties of rare earth ( RE = Ce , Tb , Eu , Tm , Sm ) -doped hexagonal K Ca Gd ( P O 4 ) 2 phosphate

Cited by 32 publications

References 55 publications

Eu(iii)/Eu(ii)-doped (Ca_0.7Sr_0.3)CO₃ phosphors with vaterite/calcite/aragonite forms as shock/temperature detectors

Eu(iii)/Eu(ii)-doped (Ca_0.7Sr_0.3)CO₃ phosphors with vaterite/calcite/aragonite forms as shock/temperature detectors

Enhanced persistent properties of Mn²⁺ activated CaZnOS

Synthesis and photoluminescence properties of Mn2+ doped Ca1-xSrxCN2 phosphors prepared by a carbon nitride based route

Contact Info

Product

Resources

About

Photoluminescence properties of (Ce3+, Mn2+)-codoped CaCO3 red phosphor

Abstract: Articles you may be interested inNear-infrared quantum-cutting luminescence and energy transfer properties of Ca3(PO4)2:Tm3+,Ce3+ phosphors J.Vacuum ultraviolet spectroscopic properties of rare earth ( RE = Ce , Tb , Eu , Tm , Sm ) -doped hexagonal K Ca Gd ( P O 4 ) 2 phosphate

Cited by 32 publications

References 55 publications

Eu(iii)/Eu(ii)-doped (Ca0.7Sr0.3)CO3 phosphors with vaterite/calcite/aragonite forms as shock/temperature detectors

Eu(iii)/Eu(ii)-doped (Ca0.7Sr0.3)CO3 phosphors with vaterite/calcite/aragonite forms as shock/temperature detectors

Enhanced persistent properties of Mn2+ activated CaZnOS

Synthesis and photoluminescence properties of Mn2+ doped Ca1-xSrxCN2 phosphors prepared by a carbon nitride based route

Contact Info

Product

Resources

About

Eu(iii)/Eu(ii)-doped (Ca_0.7Sr_0.3)CO₃ phosphors with vaterite/calcite/aragonite forms as shock/temperature detectors

Eu(iii)/Eu(ii)-doped (Ca_0.7Sr_0.3)CO₃ phosphors with vaterite/calcite/aragonite forms as shock/temperature detectors

Enhanced persistent properties of Mn²⁺ activated CaZnOS