| Presentation | 2005/9/19 Study on White Organic Light-Emitting Diodes Utilizing Difference Between Fluorescence and Phosphorescence Lifetime Yuichi HINO, Hirotake KAJII, Yutaka OHMORI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We study the transient characteristics of poly(9, 9-dioctylfluorene) (PFO)-based polymer light-emitting diodes (PLEDs) doped with green and red emissive phosphor fac-tris(2-phenylpyridine) iridium (III) [Ir(ppy)_3] and tris(1-phenylisoquinoline) iridium (III) [Ir(piq)_3]. The maximum luminance reached 4,800cd/m^2 by DC driven. The electroluminescence (EL) spectrum changed by applying various voltage pulses. White PLEDs showed the ideal white emission corresponding with the the Commission Internationale de L'Eclairage (CIE) coordinates of (0.33, 0.35) at the pulse width and frequency of 100ns and 1kHz, respectively. The CIE changed due to the difference of lifetime between fluorescence (PFO:～4ns) and phosphorescence [Ir(ppy)_3, Ir(piq)_3:～3μs]. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Polyfluorene / polymer light-emitting diodes / lifetime / white emission / pulse voltage drive |
| Paper # | OME2005-60 |
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| Conference Information | |
| Committee | OME |
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| Conference Date | 2005/9/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Organic Material Electronics (OME) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study on White Organic Light-Emitting Diodes Utilizing Difference Between Fluorescence and Phosphorescence Lifetime |
| Sub Title (in English) | |
| Keyword(1) | Polyfluorene |
| Keyword(2) | polymer light-emitting diodes |
| Keyword(3) | lifetime |
| Keyword(4) | white emission |
| Keyword(5) | pulse voltage drive |
| 1st Author's Name | Yuichi HINO |
| 1st Author's Affiliation | Osaka University, the Center for Advanced Science and Innovation (CASI)() |
| 2nd Author's Name | Hirotake KAJII |
| 2nd Author's Affiliation | Osaka University, the Center for Advanced Science and Innovation (CASI) |
| 3rd Author's Name | Yutaka OHMORI |
| 3rd Author's Affiliation | Osaka University, the Center for Advanced Science and Innovation (CASI) |
| Date | 2005/9/19 |
| Paper # | OME2005-60 |
| Volume (vol) | vol.105 |
| Number (no) | 305 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |