Pure green and narrow bandwidth electroluminescence from organic light-emitting diodes

Sheng Yi Yang; Zheng Xu; Shan Shan Liu; Jin Feng Dong; Ting Zhang; Xu Rong Xu; Zhang Li; Zhan Lan Yang; Jin Guang Wu

Pure green and narrow bandwidth electroluminescence from organic light-emitting diodes

Sheng Yi Yang^*, Zheng Xu, Shan Shan Liu, Jin Feng Dong, Ting Zhang, Xu Rong Xu, Zhang Li, Zhan Lan Yang, Jin Guang Wu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Pure green and narrow bandwidth emission from organic bilayer electroluminescent devices were presented by using Tb³⁺ : (SA)₃ as hole-transporting layer and emissive layer, and high fluorescent material Alq₃ acting as electron-transporting layer. It proves that the emission comes from carriers' recombination after their tunneling through the inner interface (Tb³⁺ : (SA)₃/Alq₃) in the bilayer ITO/Tb³⁺ : (SA)₃(40nm)/Alq₃(55 nm)/Al diode. The spectrum of the bilayer devices varies with the thickness of the electron-transporting layer. Keeping the thickness of Tb³⁺ : (SA)₃ layer constant, there is no emission from Alq₃ layer when Alq₃ layer reduces to 12 nm; meanwhile, pure green and narrow bandwidth emission can be observed. Thus, it provides a simple way to obtain high luminance and long-term stability by reducing electron- or hole-transporting layer, especially, by using a lanthanide complex for emissive layer.

Original language	English
Pages (from-to)	976
Number of pages	1
Journal	Wuli Xuebao/Acta Physica Sinica
Volume	50
Issue number	5
Publication status	Published - May 2001
Externally published	Yes

Keywords

Bilayer devices
Organic electroluminescence
Recombination zone
Tb : (SA)

Cite this

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title = "Pure green and narrow bandwidth electroluminescence from organic light-emitting diodes",

abstract = "Pure green and narrow bandwidth emission from organic bilayer electroluminescent devices were presented by using Tb3+ : (SA)3 as hole-transporting layer and emissive layer, and high fluorescent material Alq3 acting as electron-transporting layer. It proves that the emission comes from carriers' recombination after their tunneling through the inner interface (Tb3+ : (SA)3/Alq3) in the bilayer ITO/Tb3+ : (SA)3(40nm)/Alq3(55 nm)/Al diode. The spectrum of the bilayer devices varies with the thickness of the electron-transporting layer. Keeping the thickness of Tb3+ : (SA)3 layer constant, there is no emission from Alq3 layer when Alq3 layer reduces to 12 nm; meanwhile, pure green and narrow bandwidth emission can be observed. Thus, it provides a simple way to obtain high luminance and long-term stability by reducing electron- or hole-transporting layer, especially, by using a lanthanide complex for emissive layer.",

keywords = "Bilayer devices, Organic electroluminescence, Recombination zone, Tb : (SA)",

author = "Yang, {Sheng Yi} and Zheng Xu and Liu, {Shan Shan} and Dong, {Jin Feng} and Ting Zhang and Xu, {Xu Rong} and Zhang Li and Yang, {Zhan Lan} and Wu, {Jin Guang}",

year = "2001",

month = may,

language = "English",

volume = "50",

pages = "976",

journal = "Wuli Xuebao/Acta Physica Sinica",

issn = "1000-3290",

publisher = "Science Press",

number = "5",

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TY - JOUR

T1 - Pure green and narrow bandwidth electroluminescence from organic light-emitting diodes

AU - Yang, Sheng Yi

AU - Xu, Zheng

AU - Liu, Shan Shan

AU - Dong, Jin Feng

AU - Zhang, Ting

AU - Xu, Xu Rong

AU - Li, Zhang

AU - Yang, Zhan Lan

AU - Wu, Jin Guang

PY - 2001/5

Y1 - 2001/5

N2 - Pure green and narrow bandwidth emission from organic bilayer electroluminescent devices were presented by using Tb3+ : (SA)3 as hole-transporting layer and emissive layer, and high fluorescent material Alq3 acting as electron-transporting layer. It proves that the emission comes from carriers' recombination after their tunneling through the inner interface (Tb3+ : (SA)3/Alq3) in the bilayer ITO/Tb3+ : (SA)3(40nm)/Alq3(55 nm)/Al diode. The spectrum of the bilayer devices varies with the thickness of the electron-transporting layer. Keeping the thickness of Tb3+ : (SA)3 layer constant, there is no emission from Alq3 layer when Alq3 layer reduces to 12 nm; meanwhile, pure green and narrow bandwidth emission can be observed. Thus, it provides a simple way to obtain high luminance and long-term stability by reducing electron- or hole-transporting layer, especially, by using a lanthanide complex for emissive layer.

AB - Pure green and narrow bandwidth emission from organic bilayer electroluminescent devices were presented by using Tb3+ : (SA)3 as hole-transporting layer and emissive layer, and high fluorescent material Alq3 acting as electron-transporting layer. It proves that the emission comes from carriers' recombination after their tunneling through the inner interface (Tb3+ : (SA)3/Alq3) in the bilayer ITO/Tb3+ : (SA)3(40nm)/Alq3(55 nm)/Al diode. The spectrum of the bilayer devices varies with the thickness of the electron-transporting layer. Keeping the thickness of Tb3+ : (SA)3 layer constant, there is no emission from Alq3 layer when Alq3 layer reduces to 12 nm; meanwhile, pure green and narrow bandwidth emission can be observed. Thus, it provides a simple way to obtain high luminance and long-term stability by reducing electron- or hole-transporting layer, especially, by using a lanthanide complex for emissive layer.

KW - Bilayer devices

KW - Organic electroluminescence

KW - Recombination zone

KW - Tb : (SA)

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M3 - Article

AN - SCOPUS:0346453134

SN - 1000-3290

VL - 50

SP - 976

JO - Wuli Xuebao/Acta Physica Sinica

JF - Wuli Xuebao/Acta Physica Sinica

IS - 5

ER -

Pure green and narrow bandwidth electroluminescence from organic light-emitting diodes

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Keywords

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