標題: | Highly efficient top-emitting white organic electroluminescent devices |
作者: | Hsu, SF Lee, CC Hwang, SW Chen, CH 應用化學系 友訊交大聯合研發中心 Department of Applied Chemistry D Link NCTU Joint Res Ctr |
公開日期: | 20-六月-2005 |
摘要: | We have developed highly efficient white top-emitting organic light-emitting devices with broad emission by modifying both the anode and cathode. To alleviate the undesirable microcavity effect and obtain "broad" white emission, a CFx-coated Ag anode and an index-matching layer (SnO2) capped on a thin Ca/Ag cathode with a maximum transparency of 80% were employed. A top-emitting broad white-light device, based on the dual-layer architecture of light blue and yellow emitters with one of the highest EL efficiencies of 22.2 cd/A (9.6 1m/W) at 20 mA/cm(2) and 7.3 V with Commission Internationale d'Eclairage coordinates of (x = 0.31, y = 0.47), has been demonstrated. (c) 2005 American Institute of Physics. |
URI: | http://dx.doi.org/10.1063/1.1953883 http://hdl.handle.net/11536/13573 |
ISSN: | 0003-6951 |
DOI: | 10.1063/1.1953883 |
期刊: | APPLIED PHYSICS LETTERS |
Volume: | 86 |
Issue: | 25 |
結束頁: | |
顯示於類別: | 期刊論文 |