標題: | Study of efficient and stable organic light-emitting diodes with 2-methyl-9,10-di(2-naphthyl)anthracene as hole-transport material by admittance spectroscopy |
作者: | Ho, Meng-Huan Hsieh, Ming-Ta Lin, Kuan-Heng Chen, Teng-Ming Chen, Jenn-Fang Chen, Chin H. 電子物理學系 應用化學系 友訊交大聯合研發中心 Department of Electrophysics Department of Applied Chemistry D Link NCTU Joint Res Ctr |
關鍵字: | charge injection;doping;electric admittance;fluorescence;hole mobility;organic light emitting diodes |
公開日期: | 12-一月-2009 |
摘要: | An organic light-emitting device with enhanced efficiency sby employing 2-methyl-9,10-di(2-naphthyl)anthracene (MADN) as hole-transport material (HTM) has been developed. The admittance spectroscopy studies indicate that using MADN as HTM can reduce the amount of hole carriers injected into the device leading to a well-balanced carrier recombination. The green fluorescent 10-(2-benzothiazolyl)-1,1,7,7-tetramethyl-2,3,6,7-tetrahydro-1H,5H,11H-benzo[l]pyrano-[6,7,8-ij]quinolizin-11-one doped tris(8-quinolinolato)aluminum device achieved a current efficiency of 21.8 cd/A and a power efficiency of 10.4 lm/W at 20 mA/cm(2) that are 65% higher than those of the control device. The green-doped device also achieved a long half-decay lifetime of 22 000 h at an initial brightness of 500 cd/m(2). |
URI: | http://dx.doi.org/10.1063/1.3072616 http://hdl.handle.net/11536/7750 |
ISSN: | 0003-6951 |
DOI: | 10.1063/1.3072616 |
期刊: | APPLIED PHYSICS LETTERS |
Volume: | 94 |
Issue: | 2 |
結束頁: | |
顯示於類別: | 期刊論文 |