Paper Abstract and Keywords |
Presentation |
2010-05-27 16:40
Material's design concept for organic highly efficient long lived room temperature phosphorescence by decreasing nonradiative process at excited triplet state Kenro Totani (Tokyo Univ. of Agr & Tech.), Shuzo Hirata (Kyushu Univ.), Toshiyuki Watanabe (Tokyo Univ. of Agr & Tech.), Chihaya Adachi (Kyushu Univ.) OME2010-27 Link to ES Tech. Rep. Archives: OME2010-27 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Long lived room temperature phosphorescence (LL-RTP) is not observed under the atmosphere in organic materials since active thermal motion of dye and matrix quenches a long exited triplet state of dyes at RT and oxygen accelerates electron quenching in an excited triplet state of dyes due to triplet-triplet energy transfer from a dye to oxygen. Therefore, it has been reported that long excited lifetime more than second order and efficient long lived phosphorescence are usually observed when some organic dyes dispersed into matrix is frozen to 77 K. Here we report that aromatic carbons substituted with strong electron donors dispersed homogeneously into amorphous steroid compounds show highly efficient LL-RTP under the atmosphere. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Phosphorescence / Long Lived Phosphorescence / / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 110, no. 59, OME2010-27, pp. 51-53, May 2010. |
Paper # |
OME2010-27 |
Date of Issue |
2010-05-20 (OME) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
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OME2010-27 Link to ES Tech. Rep. Archives: OME2010-27 |
Conference Information |
Committee |
OME |
Conference Date |
2010-05-27 - 2010-05-27 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Kikai-Shinko-Kaikan Bldg. |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Organic Materials, General |
Paper Information |
Registration To |
OME |
Conference Code |
2010-05-OME |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Material's design concept for organic highly efficient long lived room temperature phosphorescence by decreasing nonradiative process at excited triplet state |
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Phosphorescence |
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Long Lived Phosphorescence |
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1st Author's Name |
Kenro Totani |
1st Author's Affiliation |
Tokyo Universitu. of Agriculture and Technology (Tokyo Univ. of Agr & Tech.) |
2nd Author's Name |
Shuzo Hirata |
2nd Author's Affiliation |
Kyushu University. (Kyushu Univ.) |
3rd Author's Name |
Toshiyuki Watanabe |
3rd Author's Affiliation |
Tokyo Universitu. of Agriculture and Technology (Tokyo Univ. of Agr & Tech.) |
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Chihaya Adachi |
4th Author's Affiliation |
Kyushu University. (Kyushu Univ.) |
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Speaker |
Author-1 |
Date Time |
2010-05-27 16:40:00 |
Presentation Time |
20 minutes |
Registration for |
OME |
Paper # |
OME2010-27 |
Volume (vol) |
vol.110 |
Number (no) |
no.59 |
Page |
pp.51-53 |
#Pages |
3 |
Date of Issue |
2010-05-20 (OME) |