Fluorescence of tin-sensitized manganese in single-crystalline NaCl

Muñoz, F.; Cuesta‐Rubio, Osmany

doi:10.1103/physrevb.38.9980

Cited by 25 publications

(8 citation statements)

References 20 publications

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“…9b). As these η ET values are roughly dependent on the MnO concentration, the present data shows no evidence of the local Sn 2+ -Mn 2+ clustering structure that has been previously suggested to form in alkali halide4244.…”

Section: Resultssupporting

confidence: 46%

“…These PLE spectra are shown in supplemental figure 3. Note that the color coordination positions continuously change from blue to red with the addition of MnO, and that these emission spectra consist of two broad bands attributable to the Sn 2+ and Mn 2+ centers that have also been observed in other materials3042. Peak deconvolution using Gaussian function revealed that these two peaks show little change in their emission band or half-width, indicating that the local coordination of Sn 2+ and Mn 2+ is hardly affected by the MnO concentration.…”

Section: Resultsmentioning

confidence: 59%

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Tin-Doped Inorganic Amorphous Films for Use as Transparent Monolithic Phosphors

Masai

Miyata

Yamada

et al. 2015

Sci Rep

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Although inorganic crystalline phosphors can exhibit high quantum efficiency, their use in phosphor films has been limited by a reliance on organic binders that have poor durability when exposed to high-power and/or high excitation energy light sources. To address this problem, Sn2+ -doped transparent phosphate films measuring several micrometers in thickness have been successfully prepared through heat treatment and a subsequent single dip-coating process. The resulting monolithic inorganic amorphous film exhibited an internal quantum efficiency of over 60% and can potentially utilize transmitted light. Analysis of the film’s emissivity revealed that its color can be tuned by changing the amount of Mn and Sn added to influence the energy transfer from Sn2+ to Mn2+. It is therefore concluded that amorphous films containing such emission centers can provide a novel and viable alternative to conventional amorphous films containing crystalline phosphors in light-emitting devices.

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Section: Resultssupporting

confidence: 46%

Section: Resultsmentioning

confidence: 59%

Tin-Doped Inorganic Amorphous Films for Use as Transparent Monolithic Phosphors

Masai

Miyata

Yamada

et al. 2015

Sci Rep

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“…The PL properties of melt-grown NaCl:Sn 2þ crystals have been found to be strongly affected by thermal quenching. 13,14 The A X emission intensity of melt-grown NaCl:Sn 2þ phosphor considerably decreased after rapid quenching from 900 to 300 K. 13 It has also been reported that the intensity ratio, I(A X )/ I(A T ), of freshly quenched NaCl:Sn 2þ phosphor decreases with increasing storage time in room air. 13 Thus, it appears that the A X (or R) emission mainly originates from an extrinsic effect, for example, a defect-or impurity-related center such as two nearby Sn 2þ ions on the nearest-neighbor or next-nearest-neighbor cation sites.…”

Section: B Effect Of Annealing On Pl Spectrummentioning

confidence: 95%

“…[1][2][3][4][5][6][7][8][9][10][11] However, the analysis of the photoluminescence (PL) properties has not yet been completed owing to their structureless broadband spectra and unknown site symmetries in the host lattice. 12 There have been many studies on the PL properties of Sn 2þ -activated alkali halides, such as NaCl:Sn 2þ , 13,14 KCl:Sn 2þ , [15][16][17][18] KBr:Sn 2þ , 16,[19][20][21][22] and KI:Sn 2þ . 19,23,24 Unlike monovalent ions (In þ , Tl þ , etc.…”

Section: Introductionmentioning

confidence: 99%

Optical properties of KCl:Sn2+ phosphors synthesized from aqueous KCl/SnCl2 solutions

Nara

Adachi

2011

Journal of Applied Physics

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KCl:Sn 2þ phosphors were synthesized from aqueous KCl/SnCl 2 solutions. Solvents with a molar ratio of KCl : SnCl 2 ¼ 1 : M (M ¼ 0 À 5) were dissolved in de-ionized water. The optical properties of the synthesized phosphors were investigated by photoluminescence (PL) analysis, PL excitation spectroscopy (PLE), and PL lifetime measurements. KCl:Sn 2þ phosphor synthesized with M ¼ 0.1 exhibited the strongest PL emission in the green (A T band) and red spectral regions (R band). The phosphors synthesized with M ! 1 were composites of various potassium chlorostannates and emitted light in the red spectral region (R band). Annealing the M ¼ 0.1 phosphor in dry N 2 resulted in a PL spectrum that was the same as those usually observed in melt-grown KCl:Sn 2þ phosphors (i.e., exhibiting only the A T emission band). Annealing also led to a change in the PL decay characteristic from a double exponential curve to a single exponential curve. The A T and R emission bands had nearly the same PLE spectra and were related to the deexcitation of the Sn 2þ (5s5p) ions in KCl.

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“…Some authors studied the codoping effects of sensitizer (donor) and activator (acceptor) ions in the NaCl host. They are: NaCl:Eu, Mn; 17,18 NaCl:Ca, Cu; 19 NaCl:Sn, Mn; 20 NaCl:Ca, Mn; 21 NaCl:Cd, Mn; 21 and NaCl:Ce, Tb. 22 Although cerium (Ce) can exist in either the trivalent (Ce 3+ ) or tetravalent (Ce 4+ ) state, only trivalent Ce gives rise to luminescence emission.…”

mentioning

confidence: 99%

Excitation Energy Transfer from Ce³⁺to Sn²⁺in NaCl Phosphor

Nagaoka

Adachi

2015

ECS J. Solid State Sci. Technol.

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Ce 3+ , Sn 2+ )-codoped NaCl phosphor was synthesized from an aqueous solution of NaCl−CeCl 3 −SnCl 2 . The synthesized NaCl:Ce 3+ , Sn 2+ phosphor was examined using X-ray diffraction analysis, photoluminescence (PL) analysis, PL excitation spectroscopy, and PL decay measurements. The Sn 2+ emission band peaking at ∼530 nm was enhanced about four times compared to that without adding Ce 3+ donor ions. The enhanced PL intensity was understood to be due to an energy transfer from Ce 3+ to Sn 2+ in the NaCl host. The energy transfer efficiency was estimated from the Sn 2+ acceptor concentration dependences of the Ce 3+ donor emission intensity and average decay time in the NaCl:Ce 3+ , Sn 2+ phosphors.

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Fluorescence of tin-sensitized manganese in single-crystalline NaCl

Cited by 25 publications

References 20 publications

Tin-Doped Inorganic Amorphous Films for Use as Transparent Monolithic Phosphors

Tin-Doped Inorganic Amorphous Films for Use as Transparent Monolithic Phosphors

Optical properties of KCl:Sn2+ phosphors synthesized from aqueous KCl/SnCl2 solutions

Excitation Energy Transfer from Ce³⁺to Sn²⁺in NaCl Phosphor

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Fluorescence of tin-sensitized manganese in single-crystalline NaCl

Cited by 25 publications

References 20 publications

Tin-Doped Inorganic Amorphous Films for Use as Transparent Monolithic Phosphors

Tin-Doped Inorganic Amorphous Films for Use as Transparent Monolithic Phosphors

Optical properties of KCl:Sn2+ phosphors synthesized from aqueous KCl/SnCl2 solutions

Excitation Energy Transfer from Ce3+to Sn2+in NaCl Phosphor

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Excitation Energy Transfer from Ce³⁺to Sn²⁺in NaCl Phosphor