Highly improved electroluminescence from double-layer devices based on a carbazole-functionalized europium3+ complex

Kun Yin; Hui Xu; Gaoyu Zhong; Gang Ni; Wei Huang

doi:10.1007/s00339-008-4963-7

Highly improved electroluminescence from double-layer devices based on a carbazole-functionalized europium³⁺ complex

Kun Yin
, Hui Xu
, Gaoyu Zhong
, Gang Ni
, Wei Huang

Fudan University
Heilongjiang University
Nanjing University of Posts and Telecommunications

科研成果: 期刊稿件 › 文章 › 同行评审

10 引用（Scopus）

摘要

A novel europium complex Eu(TTA)₃(CPPO)₂ (1) (TTA=thenoyltrifluoroacetone, CPPO=9-[4-(diphenyl-phosphinoyl)-phenyl]-9H- carbazole) based on the phosphine oxide ligand with bipolar structure was used to fabricate double-layer devices. The strong hole injection and transport ability of 1 was proved. The luminance of 414 cd∈m^-2 was achieved with the device configuration ITO/Eu(TTA)₃(CPPO) ₂(40 nm)/BCP (30 nm)/Mg:Ag (BCP∈=∈2,∈9-dimethyl-4, ∈7-diphenyl-1,∈10-phenanthroline), which is favorable among double-layer organic light emitting devices based on small molecular Eu ³⁺ complexes. The maximum current efficiency of 2.44 cd∈A ^-1 and external quantum efficiency of 1.55% demonstrate the potential application of 1 as a promising candidate for high-efficiency, simple-structure and pure red-emitting devices.

源语言	英语
页（从-至）	595-600
页数	6
期刊	Applied Physics A: Materials Science and Processing
卷	95
期	2
DOI	https://doi.org/10.1007/s00339-008-4963-7
出版状态	已出版 - 5月 2009
已对外发布	是

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title = "Highly improved electroluminescence from double-layer devices based on a carbazole-functionalized europium3+ complex",

abstract = "A novel europium complex Eu(TTA)3(CPPO)2 (1) (TTA=thenoyltrifluoroacetone, CPPO=9-[4-(diphenyl-phosphinoyl)-phenyl]-9H- carbazole) based on the phosphine oxide ligand with bipolar structure was used to fabricate double-layer devices. The strong hole injection and transport ability of 1 was proved. The luminance of 414 cd∈m-2 was achieved with the device configuration ITO/Eu(TTA)3(CPPO) 2(40 nm)/BCP (30 nm)/Mg:Ag (BCP∈=∈2,∈9-dimethyl-4, ∈7-diphenyl-1,∈10-phenanthroline), which is favorable among double-layer organic light emitting devices based on small molecular Eu 3+ complexes. The maximum current efficiency of 2.44 cd∈A -1 and external quantum efficiency of 1.55\% demonstrate the potential application of 1 as a promising candidate for high-efficiency, simple-structure and pure red-emitting devices.",

author = "Kun Yin and Hui Xu and Gaoyu Zhong and Gang Ni and Wei Huang",

year = "2009",

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doi = "10.1007/s00339-008-4963-7",

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T1 - Highly improved electroluminescence from double-layer devices based on a carbazole-functionalized europium3+ complex

AU - Yin, Kun

AU - Xu, Hui

AU - Zhong, Gaoyu

AU - Ni, Gang

AU - Huang, Wei

PY - 2009/5

Y1 - 2009/5

N2 - A novel europium complex Eu(TTA)3(CPPO)2 (1) (TTA=thenoyltrifluoroacetone, CPPO=9-[4-(diphenyl-phosphinoyl)-phenyl]-9H- carbazole) based on the phosphine oxide ligand with bipolar structure was used to fabricate double-layer devices. The strong hole injection and transport ability of 1 was proved. The luminance of 414 cd∈m-2 was achieved with the device configuration ITO/Eu(TTA)3(CPPO) 2(40 nm)/BCP (30 nm)/Mg:Ag (BCP∈=∈2,∈9-dimethyl-4, ∈7-diphenyl-1,∈10-phenanthroline), which is favorable among double-layer organic light emitting devices based on small molecular Eu 3+ complexes. The maximum current efficiency of 2.44 cd∈A -1 and external quantum efficiency of 1.55% demonstrate the potential application of 1 as a promising candidate for high-efficiency, simple-structure and pure red-emitting devices.

AB - A novel europium complex Eu(TTA)3(CPPO)2 (1) (TTA=thenoyltrifluoroacetone, CPPO=9-[4-(diphenyl-phosphinoyl)-phenyl]-9H- carbazole) based on the phosphine oxide ligand with bipolar structure was used to fabricate double-layer devices. The strong hole injection and transport ability of 1 was proved. The luminance of 414 cd∈m-2 was achieved with the device configuration ITO/Eu(TTA)3(CPPO) 2(40 nm)/BCP (30 nm)/Mg:Ag (BCP∈=∈2,∈9-dimethyl-4, ∈7-diphenyl-1,∈10-phenanthroline), which is favorable among double-layer organic light emitting devices based on small molecular Eu 3+ complexes. The maximum current efficiency of 2.44 cd∈A -1 and external quantum efficiency of 1.55% demonstrate the potential application of 1 as a promising candidate for high-efficiency, simple-structure and pure red-emitting devices.

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DO - 10.1007/s00339-008-4963-7

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SN - 0947-8396

VL - 95

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JO - Applied Physics A: Materials Science and Processing

JF - Applied Physics A: Materials Science and Processing

IS - 2

ER -

Highly improved electroluminescence from double-layer devices based on a carbazole-functionalized europium3+ complex

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Highly improved electroluminescence from double-layer devices based on a carbazole-functionalized europium³⁺ complex