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| Presentation | 2011-06-30 14:00 [Invited Talk] Properties of Transient EL in Phosphorescent Organic Light-Emitting Diodes Hirotake Kajii, Yutaka Ohmori (Osaka Univ.)  EMD2011-12 CPM2011-48 OME2011-26 Link to ES Tech. Rep. Archives: EMD2011-12 CPM2011-48 OME2011-26 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The properties of transient electroluminescence (EL) of phosphorescent organic light-emitting diodes (OLEDs) were investigated. The transient properties of phosphorescent OLEDs were almost independent on the device sizes. The behaviors of the transient EL characteristics are analyzed using the triplet-triplet annihilation model. The device exhibited a gradual decrease in quantum current efficiency owing to the triplet-triplet annihilation at a high current density. At a higher current density, the reduced rise and decay times are due to high-density triplet excitons related to the enhanced triplet-triplet annihilation and the increase of the nonradiative process. The cut-off frequency of the devices is mainly limited by the phosphorescent recombination lifetime. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | organic light-emitting diodes / phosphorescence / transient EL / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 111, no. 110, OME2011-26, pp. 23-27, June 2011. | |
| Paper # | OME2011-26 | |
| Date of Issue | 2011-06-23 (EMD, CPM, 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) | |
| Download PDF | EMD2011-12 CPM2011-48 OME2011-26 Link to ES Tech. Rep. Archives: EMD2011-12 CPM2011-48 OME2011-26 |
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| Conference Information | |
| Committee | EMD CPM OME |
| Conference Date | 2011-06-30 - 2011-06-30 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | OME |
| Conference Code | 2011-06-EMD-CPM-OME |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Properties of Transient EL in Phosphorescent Organic Light-Emitting Diodes |
| Sub Title (in English) | |
| Keyword(1) | organic light-emitting diodes |
| Keyword(2) | phosphorescence |
| Keyword(3) | transient EL |
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| 1st Author's Name | Hirotake Kajii |
| 1st Author's Affiliation | Osaka University (Osaka Univ.) |
| 2nd Author's Name | Yutaka Ohmori |
| 2nd Author's Affiliation | Osaka University (Osaka Univ.) |
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| Speaker | Author-1 |
| Date Time | 2011-06-30 14:00:00 |
| Presentation Time | 40 minutes |
| Registration for | OME |
| Paper # | EMD2011-12, CPM2011-48, OME2011-26 |
| Volume (vol) | vol.111 |
| Number (no) | no.108(EMD), no.109(CPM), no.110(OME) |
| Page | pp.23-27 |
| #Pages | 5 |
| Date of Issue | 2011-06-23 (EMD, CPM, OME) |
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