ITE Technical Group Submission System
Conference Paper's Information
Online Proceedings
[Sign in]
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2023-01-27 14:25
Improvement of Photoluminescent Characteristics by Post Annealing in O3 atmosphere for Y4Si2O7N2:Eu3+ Red Phosphors
Rentaro Furuie, Hiroki Shinoda (TU), Takashi Kunimoto (Tokushima Bunri), Koutoku Ohmi (TU)
Abstract (in Japanese) (See Japanese page) 
(in English) A low-temperature post-annealing in O3 atmosphere has been attempted to enhance the Eu3+ activation for Y4Si2O7N2:Eu3+ red phosphors, which were prepared by the solid-state reaction in NH3. By the O3 annealing, the photoluminescence (PL) excitation bands due to both Eu3+ charge transfer state (CTS) and 4f-4f direct transition have been increased by about 40%, compared to the unannealed samples. It has been found that the proper anneal temperature is about 435°C, at which the highest photoluminescence (PL) intensity is obtained under the CTS excitation.
Keyword (in Japanese) (See Japanese page) 
(in English) Y4Si2O7N2 / CTS / Red phosphor / O3 annealing / White LED / / /  
Reference Info. ITE Tech. Rep., vol. 47, no. 1, IDY2023-9, pp. 33-36, Jan. 2023.
Paper # IDY2023-9 
Date of Issue 2023-01-19 (IDY) 
ISSN Print edition: ISSN 1342-6893    Online edition: ISSN 2424-1970
Download PDF

Conference Information
Conference Date 2023-01-26 - 2023-01-27 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To IDY 
Conference Code 2023-01-IDY-SSL-EID-JC-EDD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Improvement of Photoluminescent Characteristics by Post Annealing in O3 atmosphere for Y4Si2O7N2:Eu3+ Red Phosphors 
Sub Title (in English)  
Keyword(1) Y4Si2O7N2  
Keyword(2) CTS  
Keyword(3) Red phosphor  
Keyword(4) O3 annealing  
Keyword(5) White LED  
1st Author's Name Rentaro Furuie  
1st Author's Affiliation Tottori University (TU)
2nd Author's Name Hiroki Shinoda  
2nd Author's Affiliation Tottori University (TU)
3rd Author's Name Takashi Kunimoto  
3rd Author's Affiliation Tokushima Bunri University (Tokushima Bunri)
4th Author's Name Koutoku Ohmi  
4th Author's Affiliation Tottori University (TU)
5th Author's Name  
5th Author's Affiliation ()
6th Author's Name  
6th Author's Affiliation ()
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
Speaker Author-1 
Date Time 2023-01-27 14:25:00 
Presentation Time 10 minutes 
Registration for IDY 
Paper # IDY2023-9 
Volume (vol) vol.47 
Number (no) no.1 
Page pp.33-36 
Date of Issue 2023-01-19 (IDY) 

[Return to Top Page]

[Return to ITE Web Page]

The Institute of Image Information and Television Engineers (ITE), Japan