Efficient electroluminescence from new lanthanide (Eu3+, Sm3+) complexes

doi:10.1021/ic0485561

IMR OpenIR

	Efficient electroluminescence from new lanthanide (Eu3+, Sm3+) complexes
	Yu, JB ; Zhou, L ; Zhang, HJ ; Zheng, YX ; Li, HR ; Deng, RP ; Peng, ZP ; Li, ZF
通讯作者	Zhang, HJ()
	2005-03-07
发表期刊	INORGANIC CHEMISTRY
ISSN	0020-1669
卷号	44 期号:5 页码:1611-1618
摘要	The syntheses, structures, and electroluminescent properties are described for two new lanthanice complexes Ln(HFNH)(3)phen [HFNH = 4,4,5,5,6,6,6-heptafluoro-1-(2-naphthyl)hexane-1,3-dione; phen = 1,10-phenanthroline; Ln = Eu3+ (1), Sm3+ (2)]. Both complexes exhibit bright photoluminescence at room temperature (RT) due to the characteristic emission of Eu3+ and Sm3+ ion. Several devices using the two complexes as emitters were fabricated. The performances of these devices are among the best reported for devices using europium complex and samarium complex as emitters. The device based on 1 with the structure ITO/TPD (50 nm)/1:CBP (10%, 40 nm)/BCP (20 nm)/AIQ (30 nm)/LiF (11 nm)/Al (200 nm) exhibits the maximum brightness of 957 cd/m(2), current efficiency of 4.14 cd/A, and power efficiency of 2.28 Im/W with a pure red Eu3+ ion emission. Especially, at the high brightness of 200 cd/m(2), the device of 1 still has a high current efficiency of 2.15 cd/A. The device of 2 with a three-layer structure of ITO/TPD (50 nm)/2 (50 nm)/BCP (20 nm)/LiF (1 nm)/Al (200 nm) gives the maximum brightness of 42 cd/m(2), current efficiency of 0.18 cd/A. By the comparison of the electroluminescent properties of devices based on Eu(TTA)(3)phen (TTA = 2-thenoyltrifluoroacteonate) and 1, we conclude that the polyfluoration on the alkyl group of the ligand and the introduction of the long conjugate naphthyl group into the ligand improve the efficiency of 1-doped devices, especially at high current densities.
DOI	10.1021/ic0485561
收录类别	SCI
语种	英语
WOS研究方向	Chemistry
WOS类目	Chemistry, Inorganic & Nuclear
WOS记录号	WOS:000227346300063
出版者	AMER CHEMICAL SOC
引用统计	被引频次：212[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/83566
专题	中国科学院金属研究所
通讯作者	Zhang, HJ
作者单位	1.Changchun Inst Appl Chem, Key Lab Rare Earth Chem & Phys, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch Chinese Acad Sci, Changchun 130022, Peoples R China
推荐引用方式 GB/T 7714	Yu, JB,Zhou, L,Zhang, HJ,et al. Efficient electroluminescence from new lanthanide (Eu3+, Sm3+) complexes[J]. INORGANIC CHEMISTRY,2005,44(5):1611-1618.
APA	Yu, JB.,Zhou, L.,Zhang, HJ.,Zheng, YX.,Li, HR.,...&Li, ZF.(2005).Efficient electroluminescence from new lanthanide (Eu3+, Sm3+) complexes.INORGANIC CHEMISTRY,44(5),1611-1618.
MLA	Yu, JB,et al."Efficient electroluminescence from new lanthanide (Eu3+, Sm3+) complexes".INORGANIC CHEMISTRY 44.5(2005):1611-1618.