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Presentation 2020-01-23 13:50
[Poster Presentation] Investigation of correlation between PL temperature characteristics and charge transfer state (CTS) in Eu3+ activated red multi-anion compound phosphors
Misa Kawashima, Ken Kinoshita, Takuya Sohma, Kodai Nakamoto, Tadashi Ishigaki (Tottori Univ.), Takashi Kunimoto (Tokushima Bunri Univ.), Koutoku Ohmi (Tottori Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) Eu3+ activated red multi-anion compound phosphors, such as Y4Si2O7N2:Eu3+ (YSON), La2O3:Eu3+ (LO) and LaOF:Eu3+ (LOF), have been synthesized. Photoluminescence (PL) temperature dependences of these phosphors have been measured. From the results, the activation energy ΔE has been estimated to be 0.08 eV for YSON, 0.12 eV for LO, 0.11 eV for LOF. It is considered that the ΔE value corresponds to the charge transfer state (CTS) energy from 4f ground state, that is, 3.66 eV for YSON, 4.37 eV for LO, 4.53 eV for LOF.
Keyword (in Japanese) (See Japanese page) 
(in English) red phosphor / white LED / Eu3+ / CTS excitation band / PL temperature characteristics / activation energy / /  
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Conference Information
Committee IDY IEICE-EID IEIJ-SSL SID-JC IEE-EDD  
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) 
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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) Investigation of correlation between PL temperature characteristics and charge transfer state (CTS) in Eu3+ activated red multi-anion compound phosphors 
Sub Title (in English)  
Keyword(1) red phosphor  
Keyword(2) white LED  
Keyword(3) Eu3+  
Keyword(4) CTS excitation band  
Keyword(5) PL temperature characteristics  
Keyword(6) activation energy  
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Keyword(8)  
1st Author's Name Misa Kawashima  
1st Author's Affiliation Tottori University (Tottori Univ.)
2nd Author's Name Ken Kinoshita  
2nd Author's Affiliation Tottori University (Tottori Univ.)
3rd Author's Name Takuya Sohma  
3rd Author's Affiliation Tottori University (Tottori Univ.)
4th Author's Name Kodai Nakamoto  
4th Author's Affiliation Tottori University (Tottori Univ.)
5th Author's Name Tadashi Ishigaki  
5th Author's Affiliation Tottori University (Tottori Univ.)
6th Author's Name Takashi Kunimoto  
6th Author's Affiliation Tokushima Bunri University (Tokushima Bunri Univ.)
7th Author's Name Koutoku Ohmi  
7th Author's Affiliation Tottori University (Tottori Univ.)
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Speaker Author-1 
Date Time 2020-01-23 13:50:00 
Presentation Time 5 minutes 
Registration for IEICE-EID 
Paper #  
Volume (vol) vol.44 
Number (no) no.1 
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