Improvement of Emission Intensity for Near-infrared-emitting Ca14Zn6Al10 O35:Mn4+ Phosphor by Oxygen-pressure Method

Takuya Hasegawa; Sun Woog Kim; Takeshi Abe; Shota Kumagai; Ryota Yamanashi; Kohei Seki; Kazuyoshi Uematsu; Kenji Toda; Mineo Sato

doi:10.1246/cl.160498

Improvement of Emission Intensity for Near-infrared-emitting Ca₁₄Zn₆Al₁₀ O₃₅:Mn⁴⁺ Phosphor by Oxygen-pressure Method

Takuya Hasegawa, Sun Woog Kim, Takeshi Abe, Shota Kumagai, Ryota Yamanashi, Kohei Seki, Kazuyoshi Uematsu, Kenji Toda, Mineo Sato

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

We employed an oxygen-pressure method as a novel approach to improve the emission intensity of a Ca₁₄ Zn₆ Al₁₀ -O₃₅ :Mn⁴⁺ phosphor. With this new approach, the Ca₁₄ Zn₆ Al₁₀ -O₃₅ :Mn⁴⁺ phosphor exhibited near-infrared emission under excitation at 450 nm, and the emission intensity of a Ca₁₄ -Zn₆ (Al_0.97 Mn_0.03 )₁₀ O₃₅ phosphor was effectively enhanced by approximately 143% compared with that of a Ca₁₄ Zn₆ (Al_0.97 -Mn_0.03 )₁₀ O₃₅ phosphor synthesized by a conventional solid-state reaction method in air.

Original language	English
Pages (from-to)	1096-1098
Number of pages	3
Journal	Chemistry Letters
Volume	45
Issue number	9
DOIs	https://doi.org/10.1246/cl.160498
Publication status	Published - 2016 Jan 1
Externally published	Yes

Keywords

Mn -activated phosphor
Near-infrared emission
Oxygen gas pressure synthesis

ASJC Scopus subject areas

Chemistry(all)

Access to Document

10.1246/cl.160498

Cite this

Improvement of Emission Intensity for Near-infrared-emitting Ca₁₄Zn₆Al₁₀ O₃₅:Mn⁴⁺ Phosphor by Oxygen-pressure Method. / Hasegawa, Takuya; Kim, Sun Woog; Abe, Takeshi; Kumagai, Shota; Yamanashi, Ryota; Seki, Kohei; Uematsu, Kazuyoshi; Toda, Kenji; Sato, Mineo.

In: Chemistry Letters, Vol. 45, No. 9, 01.01.2016, p. 1096-1098.

Research output: Contribution to journal › Article › peer-review

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abstract = "We employed an oxygen-pressure method as a novel approach to improve the emission intensity of a Ca14 Zn6 Al10 -O35 :Mn4+ phosphor. With this new approach, the Ca14 Zn6 Al10 -O35 :Mn4+ phosphor exhibited near-infrared emission under excitation at 450 nm, and the emission intensity of a Ca14 -Zn6 (Al0.97 Mn0.03 )10 O35 phosphor was effectively enhanced by approximately 143% compared with that of a Ca14 Zn6 (Al0.97 -Mn0.03 )10 O35 phosphor synthesized by a conventional solid-state reaction method in air.",

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AU - Hasegawa, Takuya

AU - Kim, Sun Woog

AU - Abe, Takeshi

AU - Kumagai, Shota

AU - Yamanashi, Ryota

AU - Seki, Kohei

AU - Uematsu, Kazuyoshi

AU - Toda, Kenji

AU - Sato, Mineo

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AB - We employed an oxygen-pressure method as a novel approach to improve the emission intensity of a Ca14 Zn6 Al10 -O35 :Mn4+ phosphor. With this new approach, the Ca14 Zn6 Al10 -O35 :Mn4+ phosphor exhibited near-infrared emission under excitation at 450 nm, and the emission intensity of a Ca14 -Zn6 (Al0.97 Mn0.03 )10 O35 phosphor was effectively enhanced by approximately 143% compared with that of a Ca14 Zn6 (Al0.97 -Mn0.03 )10 O35 phosphor synthesized by a conventional solid-state reaction method in air.

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KW - Oxygen gas pressure synthesis

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