https://scholars.lib.ntu.edu.tw/handle/123456789/325558
標題: | Microcavity two-unit tandem organic light-emitting device having a high efficiency | 作者: | T.-Y. Cho C.-L. Lin CHUNG-CHIH WU |
公開日期: | 三月-2006 | 卷: | 88 | 期: | 11 | 起(迄)頁: | 111106 | 來源出版物: | Applied Physics Letters | 摘要: | In pursuit of further enhancement in luminance and efficiency of organic light-emitting devices (OLEDs), it is worth exploring what benefits could be obtained by combining two luminance-enhancement techniques, i.e., microcavity and tandem OLEDs. In this letter, we have investigated theoretically and experimentally the characteristics of noncavity and microcavity tandem OLEDs. Results show that with well designed microcavity and device structures (i.e., consistent with resonant and antinode conditions), a fivefold enhancement in luminance can be achieved with cavity tandem devices having only two emitting units. A very high efficiency of 200 cd/A has been demonstrated with a phosphorescent cavity two-unit device. © 2006 American Institute of Physics. |
URI: | http://scholars.lib.ntu.edu.tw/handle/123456789/325558 https://www.scopus.com/inward/record.uri?eid=2-s2.0-33645133571&doi=10.1063%2f1.2185077&partnerID=40&md5=467fd17dd6aefcb1fba66be9c9e54f88 |
DOI: | 10.1063/1.2185077 | SDG/關鍵字: | Luminescence; Optical devices; Optical properties; Phosphorescence; Cavity tandem devices; Microcavity; Organic light-emitting devices (OLEDs); Light emitting diodes |
顯示於: | 電機工程學系 |
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