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-Jan-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: 
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