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Paper Abstract and Keywords
Presentation 2020-01-23 14:10
[Poster Presentation] Mn5+ activated M2AO4 (M = Ca, Sr, Ba, A = Si, Ge) near-infrared phosphors
Shoto Tanaka, Tadashi Ishigaki, Yutaro Zaima, Kohei Matsubara, Yudai Nitta, Koutoku Ohmi (Tottori Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) M2AO4:Mn5+ (M = Ca, Sr, Ba, A = Si, Ge) phosphors have been synthesized by solid-state reaction method. Their crystallographic and luminescent characteristics have been investigated. An infrared photoluminescence (PL) emission due to the 3d -3d internal transition in Mn5+ center is observed for all samples. This fact indicates that Mn5+ substitutes for Si4+ or Ge4+. The strongest PL intensity under 600 nm excitation is observed from the Ca2GeO4 host. Its PL intensity is stronger by 6.2 times than that of the Ca10(PO4)6(OH)2:Mn5+ nanoparticle phosphor synthesized by liquid-phase reaction method.
Keyword (in Japanese) (See Japanese page) 
(in English) bioimaging / near-infrared phosphor / Mn5+ / Ca2GeO4:Mn5+ / Germanate phosphor / / /  
Reference Info. ITE Tech. Rep.
Paper #  
Date of Issue  
ISSN Print edition: ISSN 1342-6893  Online edition: ISSN 2424-1970
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Conference Information
Conference Date 2020-01-23 - 2020-01-24 
Place (in Japanese) (See Japanese page) 
Place (in English) Tottori Univ 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To IEICE-EID 
Conference Code 2020-01-EID-IDY-SSL-JC-EDD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Mn5+ activated M2AO4 (M = Ca, Sr, Ba, A = Si, Ge) near-infrared phosphors 
Sub Title (in English)  
Keyword(1) bioimaging  
Keyword(2) near-infrared phosphor  
Keyword(3) Mn5+  
Keyword(4) Ca2GeO4:Mn5+  
Keyword(5) Germanate phosphor  
1st Author's Name Shoto Tanaka  
1st Author's Affiliation Tottori University (Tottori Univ.)
2nd Author's Name Tadashi Ishigaki  
2nd Author's Affiliation Tottori University (Tottori Univ.)
3rd Author's Name Yutaro Zaima  
3rd Author's Affiliation Tottori University (Tottori Univ.)
4th Author's Name Kohei Matsubara  
4th Author's Affiliation Tottori University (Tottori Univ.)
5th Author's Name Yudai Nitta  
5th Author's Affiliation Tottori University (Tottori Univ.)
6th Author's Name Koutoku Ohmi  
6th Author's Affiliation Tottori University (Tottori Univ.)
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Date Time 2020-01-23 14:10:00 
Presentation Time
Registration for IEICE-EID 
Paper #  
Volume (vol) ITE-44 
Number (no) no.1 
#Pages ITE- 
Date of Issue  

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