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| Presentation | 2008-03-13 10:20 Response characteristics of phosphorescence organic light-emitting diodes driven by pulse voltage and color tunable white organic light-emitting diodes application Kunitoshi Kimpara, Yasuhiro Sekimoto, Hirotake Kajii, Yutaka Ohmori (Osaka Univ.)  OME2007-90 Link to ES Tech. Rep. Archives: OME2007-90 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Blue, red and white organic light-emitting diodes (OLEDs) with two phosphorescence materials, bis[(4,6-difuluorophenyl)-pyridinato-N,C2’](picolinate iridium(III) [FIrpic] and tris(1- phenylisoquinoline) iridium (III) [Ir(piq)3], were fabricated and investigated. For the white OLEDs, the maximum Luminance of 1400 cd/m2 and the max efficiency of 7.5 cd/A were obtained. Also, the possibility of color tunable white organic light-emitting diodes using the difference of response characteristics of each device driven by pulse voltage was investigated. At pulse voltage driving, chromaticity coordinates at CIE chromaticity diagram were changed from (x, y) = (0.35, 0.40) to (x, y) = (0.45, 0.39). This change is considered to be caused by the difference of pulse characteristics between two phosphorescence materials driven by pulse voltage. This result suggested that white organic light-emitting diodes using the difference of response characteristics of each device driven by pulse voltage can be expected to be applied to color tunable light-emitting devices. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | white organic light-emitting diode / phosphorescence materials / Ir complex / response characteristics / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 546, OME2007-90, pp. 7-10, March 2008. | |
| Paper # | OME2007-90 | |
| Date of Issue | 2008-03-06 (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 | OME2007-90 Link to ES Tech. Rep. Archives: OME2007-90 |
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| Conference Information | |
| Committee | OME |
| Conference Date | 2008-03-13 - 2008-03-13 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kyoto Research Park |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Polymer Optical Circuit, etc. |
| Paper Information | |
| Registration To | OME |
| Conference Code | 2008-03-OME |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Response characteristics of phosphorescence organic light-emitting diodes driven by pulse voltage and color tunable white organic light-emitting diodes application |
| Sub Title (in English) | |
| Keyword(1) | white organic light-emitting diode |
| Keyword(2) | phosphorescence materials |
| Keyword(3) | Ir complex |
| Keyword(4) | response characteristics |
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| 1st Author's Name | Kunitoshi Kimpara |
| 1st Author's Affiliation | Osaka University (Osaka Univ.) |
| 2nd Author's Name | Yasuhiro Sekimoto |
| 2nd Author's Affiliation | Osaka University (Osaka Univ.) |
| 3rd Author's Name | Hirotake Kajii |
| 3rd Author's Affiliation | Osaka University (Osaka Univ.) |
| 4th Author's Name | Yutaka Ohmori |
| 4th Author's Affiliation | Osaka University (Osaka Univ.) |
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| Speaker | Author-1 |
| Date Time | 2008-03-13 10:20:00 |
| Presentation Time | 20 minutes |
| Registration for | OME |
| Paper # | OME2007-90 |
| Volume (vol) | vol.107 |
| Number (no) | no.546 |
| Page | pp.7-10 |
| #Pages | 4 |
| Date of Issue | 2008-03-06 (OME) |
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