Organic light-emitting diodes with improved hole-electron balance and tunable light emission with aromatic diamine/bathocuproine multiple hole-trapping-layer

Yu meng Shi; Zhen bo Deng; Deng hui Xu; Jing Xiao

doi:10.1016/j.displa.2006.05.003

Organic light-emitting diodes with improved hole-electron balance and tunable light emission with aromatic diamine/bathocuproine multiple hole-trapping-layer

Yu meng Shi^*, Zhen bo Deng, Deng hui Xu, Jing Xiao

^*Corresponding author for this work

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

19 Scopus citations

Abstract

Organic light-emitting diodes (OLEDs) with multiple hole-trapping-layer (HTL) structures, which consist of N,N′-bis-(1-naphthyl)-N, N′-diphenyl-1,1′-biphenyl 4,4′-diamine (NPB), bathocuproine (BCP) and tris(8-hydroxy-quinoline)aluminum (Alq₃) have been fabricated. The emitting zone of the device with the structure of ITO/[NPB/BCP]_n/Alq₃/LiF/Al can be changed by the number n of HTL. The effect of the multiple HTL structure upon the performance of OLEDs with tris(8-hydroxyquinoline) aluminum as the emitting material has been investigated. Compared with the brightness of the conventional green emitting diode without the multiple HTL structure, that of the diode with periodic number of five has been increased from 2512.8 cd/m² to 8661.0 cd/m². Such an improvement in the device performance was attributed to the improved hole-electron balance, which can be further attributed to the introduction of the multiple HTL structure.

Original language	English (US)
Pages (from-to)	166-169
Number of pages	4
Journal	Displays
Volume	27
Issue number	4-5
DOIs	https://doi.org/10.1016/j.displa.2006.05.003
State	Published - Nov 2006
Externally published	Yes

Keywords

Carrier
Hole injection
Organic light-emitting diode

ASJC Scopus subject areas

Human-Computer Interaction
Hardware and Architecture
Electrical and Electronic Engineering

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10.1016/j.displa.2006.05.003

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title = "Organic light-emitting diodes with improved hole-electron balance and tunable light emission with aromatic diamine/bathocuproine multiple hole-trapping-layer",

abstract = "Organic light-emitting diodes (OLEDs) with multiple hole-trapping-layer (HTL) structures, which consist of N,N′-bis-(1-naphthyl)-N, N′-diphenyl-1,1′-biphenyl 4,4′-diamine (NPB), bathocuproine (BCP) and tris(8-hydroxy-quinoline)aluminum (Alq3) have been fabricated. The emitting zone of the device with the structure of ITO/[NPB/BCP]n/Alq3/LiF/Al can be changed by the number n of HTL. The effect of the multiple HTL structure upon the performance of OLEDs with tris(8-hydroxyquinoline) aluminum as the emitting material has been investigated. Compared with the brightness of the conventional green emitting diode without the multiple HTL structure, that of the diode with periodic number of five has been increased from 2512.8 cd/m2 to 8661.0 cd/m2. Such an improvement in the device performance was attributed to the improved hole-electron balance, which can be further attributed to the introduction of the multiple HTL structure.",

keywords = "Carrier, Hole injection, Organic light-emitting diode",

author = "Shi, {Yu meng} and Deng, {Zhen bo} and Xu, {Deng hui} and Jing Xiao",

year = "2006",

month = nov,

doi = "10.1016/j.displa.2006.05.003",

language = "English (US)",

volume = "27",

pages = "166--169",

journal = "Displays",

issn = "0141-9382",

publisher = "Elsevier B.V.",

number = "4-5",

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TY - JOUR

T1 - Organic light-emitting diodes with improved hole-electron balance and tunable light emission with aromatic diamine/bathocuproine multiple hole-trapping-layer

AU - Shi, Yu meng

AU - Deng, Zhen bo

AU - Xu, Deng hui

AU - Xiao, Jing

PY - 2006/11

Y1 - 2006/11

N2 - Organic light-emitting diodes (OLEDs) with multiple hole-trapping-layer (HTL) structures, which consist of N,N′-bis-(1-naphthyl)-N, N′-diphenyl-1,1′-biphenyl 4,4′-diamine (NPB), bathocuproine (BCP) and tris(8-hydroxy-quinoline)aluminum (Alq3) have been fabricated. The emitting zone of the device with the structure of ITO/[NPB/BCP]n/Alq3/LiF/Al can be changed by the number n of HTL. The effect of the multiple HTL structure upon the performance of OLEDs with tris(8-hydroxyquinoline) aluminum as the emitting material has been investigated. Compared with the brightness of the conventional green emitting diode without the multiple HTL structure, that of the diode with periodic number of five has been increased from 2512.8 cd/m2 to 8661.0 cd/m2. Such an improvement in the device performance was attributed to the improved hole-electron balance, which can be further attributed to the introduction of the multiple HTL structure.

AB - Organic light-emitting diodes (OLEDs) with multiple hole-trapping-layer (HTL) structures, which consist of N,N′-bis-(1-naphthyl)-N, N′-diphenyl-1,1′-biphenyl 4,4′-diamine (NPB), bathocuproine (BCP) and tris(8-hydroxy-quinoline)aluminum (Alq3) have been fabricated. The emitting zone of the device with the structure of ITO/[NPB/BCP]n/Alq3/LiF/Al can be changed by the number n of HTL. The effect of the multiple HTL structure upon the performance of OLEDs with tris(8-hydroxyquinoline) aluminum as the emitting material has been investigated. Compared with the brightness of the conventional green emitting diode without the multiple HTL structure, that of the diode with periodic number of five has been increased from 2512.8 cd/m2 to 8661.0 cd/m2. Such an improvement in the device performance was attributed to the improved hole-electron balance, which can be further attributed to the introduction of the multiple HTL structure.

KW - Carrier

KW - Hole injection

KW - Organic light-emitting diode

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U2 - 10.1016/j.displa.2006.05.003

DO - 10.1016/j.displa.2006.05.003

M3 - Article

AN - SCOPUS:33750359659

SN - 0141-9382

VL - 27

SP - 166

EP - 169

JO - Displays

JF - Displays

IS - 4-5

ER -

Organic light-emitting diodes with improved hole-electron balance and tunable light emission with aromatic diamine/bathocuproine multiple hole-trapping-layer

Abstract

Keywords

ASJC Scopus subject areas

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