Remarkable increase in the efficiency of N,N-'-dimethylquinacridone dye heavily doped organic light emitting diodes under high current density

	Remarkable increase in the efficiency of N,N-'-dimethylquinacridone dye heavily doped organic light emitting diodes under high current density
其他题名	论文其他题名
	Liu H. H.; Yan F.; Li W. L.; Chu B.; Su W. M.; Su Z. S.; Wang J. B.; Hu Z. Z.; Zhang Z. Q.
	2010
发表期刊	Applied Physics Letters
ISSN	0003-6951
卷号	96 期号:8
摘要	We demonstrated a remarkable rise of external quantum efficiency (EQE) of N,N-'-dimethylquinacridone (DMQA) heavily doped organic light-emitting diodes with tris-(8-hydroxyquinolinato) aluminum as host at large current density. The EQE of 5.0 wt % DMQA doped device increased 42% as the current density rises from 20 to 300 mA/cm(2). At 300 mA/cm(2), the EQE of 1.8 wt % DMQA doped device equals to that of the optimal concentration (0.8 wt %) doped device, which behaves a flat trend curve with the increase of current density. Whereas, another green fluorescent dye (Coumarin6) doped device with the same structure indicates straight falling dependence of EQE on increasing current density. The EQE increase is attributed to the dissociation of excimer species formed by interaction of higher concentration DMQA molecules into DMQA monomer excitons under high current density.
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/24749
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Liu H. H.,Yan F.,Li W. L.,et al. Remarkable increase in the efficiency of N,N-'-dimethylquinacridone dye heavily doped organic light emitting diodes under high current density[J]. Applied Physics Letters,2010,96(8).
APA	Liu H. H..,Yan F..,Li W. L..,Chu B..,Su W. M..,...&Zhang Z. Q..(2010).Remarkable increase in the efficiency of N,N-'-dimethylquinacridone dye heavily doped organic light emitting diodes under high current density.Applied Physics Letters,96(8).
MLA	Liu H. H.,et al."Remarkable increase in the efficiency of N,N-'-dimethylquinacridone dye heavily doped organic light emitting diodes under high current density".Applied Physics Letters 96.8(2010).

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