Blue organic light emitting diodes with graded junction

Hao Zhang; Shan Peng Liu; Wei Huang; Fu Xiang Wei; Xue Yin Jiang; Zhi Lin Zhang

Blue organic light emitting diodes with graded junction

Hao Zhang, Shan Peng Liu, Wei Huang, Fu Xiang Wei, Xue Yin Jiang, Zhi Lin Zhang

Shanghai University

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

2 Scopus citations

Abstract

A blue organic light emitting diode (OLED) with a graded junction (GJ) at hole transporting layer (HTL) and emitted layer (EML) interface was constructed. Compared with the conventional heterojunction (HJ) OLED, GJ OLED exhibited significantly improved stability, and the half lifetime achieved 6998 h at initial luminance 100 cd/m², which is more than 6 times longer than that of HJ OLED. And a Gaq thin layer is inserted in the TBADN/Alq interface, the step barrier from Alq Gaq to TBADN for electron injection is though formed. The GJ devices with Gaq layer show 20% higher efficiency than that of conventional and 7 times longer lifetime than that of HJ one.

Original language	English
Pages (from-to)	893-895
Number of pages	3
Journal	Guangdianzi Jiguang/Journal of Optoelectronics Laser
Volume	18
Issue number	8
State	Published - Aug 2007
Externally published	Yes

Keywords

Blue OLED
Efficiency
Graded junction (GJ)
Stability
Step barrier

Cite this

@article{70ab61110f2d4eae831d90e8da5ce958,

title = "Blue organic light emitting diodes with graded junction",

abstract = "A blue organic light emitting diode (OLED) with a graded junction (GJ) at hole transporting layer (HTL) and emitted layer (EML) interface was constructed. Compared with the conventional heterojunction (HJ) OLED, GJ OLED exhibited significantly improved stability, and the half lifetime achieved 6998 h at initial luminance 100 cd/m2, which is more than 6 times longer than that of HJ OLED. And a Gaq thin layer is inserted in the TBADN/Alq interface, the step barrier from Alq Gaq to TBADN for electron injection is though formed. The GJ devices with Gaq layer show 20% higher efficiency than that of conventional and 7 times longer lifetime than that of HJ one.",

keywords = "Blue OLED, Efficiency, Graded junction (GJ), Stability, Step barrier",

author = "Hao Zhang and Liu, {Shan Peng} and Wei Huang and Wei, {Fu Xiang} and Jiang, {Xue Yin} and Zhang, {Zhi Lin}",

year = "2007",

month = aug,

language = "英语",

volume = "18",

pages = "893--895",

journal = "Guangdianzi Jiguang/Journal of Optoelectronics Laser",

issn = "1005-0086",

publisher = "Tianjin University of Technology",

number = "8",

}

TY - JOUR

T1 - Blue organic light emitting diodes with graded junction

AU - Zhang, Hao

AU - Liu, Shan Peng

AU - Huang, Wei

AU - Wei, Fu Xiang

AU - Jiang, Xue Yin

AU - Zhang, Zhi Lin

PY - 2007/8

Y1 - 2007/8

N2 - A blue organic light emitting diode (OLED) with a graded junction (GJ) at hole transporting layer (HTL) and emitted layer (EML) interface was constructed. Compared with the conventional heterojunction (HJ) OLED, GJ OLED exhibited significantly improved stability, and the half lifetime achieved 6998 h at initial luminance 100 cd/m2, which is more than 6 times longer than that of HJ OLED. And a Gaq thin layer is inserted in the TBADN/Alq interface, the step barrier from Alq Gaq to TBADN for electron injection is though formed. The GJ devices with Gaq layer show 20% higher efficiency than that of conventional and 7 times longer lifetime than that of HJ one.

AB - A blue organic light emitting diode (OLED) with a graded junction (GJ) at hole transporting layer (HTL) and emitted layer (EML) interface was constructed. Compared with the conventional heterojunction (HJ) OLED, GJ OLED exhibited significantly improved stability, and the half lifetime achieved 6998 h at initial luminance 100 cd/m2, which is more than 6 times longer than that of HJ OLED. And a Gaq thin layer is inserted in the TBADN/Alq interface, the step barrier from Alq Gaq to TBADN for electron injection is though formed. The GJ devices with Gaq layer show 20% higher efficiency than that of conventional and 7 times longer lifetime than that of HJ one.

KW - Blue OLED

KW - Efficiency

KW - Graded junction (GJ)

KW - Stability

KW - Step barrier

UR - http://www.scopus.com/inward/record.url?scp=34548639248&partnerID=8YFLogxK

M3 - 文章

AN - SCOPUS:34548639248

SN - 1005-0086

VL - 18

SP - 893

EP - 895

JO - Guangdianzi Jiguang/Journal of Optoelectronics Laser

JF - Guangdianzi Jiguang/Journal of Optoelectronics Laser

IS - 8

ER -

Blue organic light emitting diodes with graded junction

Abstract

Keywords

Other files and links

Fingerprint

Cite this