Influence of nickel oxide nanolayer and doping in organic light-emitting devices

Sungho Woo; Jaehyun Kim; Gwijeong Cho; Kangpil Kim; Hongkeun Lyu; Youngkyoo Kim

doi:10.1016/j.jiec.2009.09.051

Influence of nickel oxide nanolayer and doping in organic light-emitting devices

Sungho Woo, Jaehyun Kim, Gwijeong Cho, Kangpil Kim, Hongkeun Lyu, Youngkyoo Kim

Kyungpook National University

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

21 Scopus citations

Abstract

Here we report the effect of introducing nickel oxide (NiO) on the performance of organic light-emitting devices (OLEDs) based on small molecules. For the purpose of aligning the NiO deposition with the conventional OLED process, we employed a thermal evaporation method using the NiO powders. To understand the influence of the NiO introduction, we fabricated two types of devices: (1) OLED with the NiO nanolayer and (2) OLED with the NiO-doped hole transport layer. Results show that the NiO introduction improved the hole injection in both types of OLED. However, the device with the NiO nanolayer exhibited greatly improved efficiency, whereas the efficiency was significantly lowered for the device with the NiO-doped hole transport layer.

Original language	English
Pages (from-to)	716-718
Number of pages	3
Journal	Journal of Industrial and Engineering Chemistry
Volume	15
Issue number	5
DOIs	https://doi.org/10.1016/j.jiec.2009.09.051
State	Published - 25 Sep 2009

Bibliographical note

Funding Information:
This work was supported by the DGIST Basic Research Program of the MEST (Ministry of Education, Science and Technology of the Korea Government). Y.K. thanks for the partial financial support by the Korea Science and Engineering Foundation (KOSEF) grant ( R01-2007-000-10836-0 ).

Keywords

Hole injection
Nanolayer
NiO
OLED
Thermal evaporation

Access to Document

10.1016/j.jiec.2009.09.051

Cite this

@article{ddbf83f21663489195d2502bff2b09ca,

title = "Influence of nickel oxide nanolayer and doping in organic light-emitting devices",

abstract = "Here we report the effect of introducing nickel oxide (NiO) on the performance of organic light-emitting devices (OLEDs) based on small molecules. For the purpose of aligning the NiO deposition with the conventional OLED process, we employed a thermal evaporation method using the NiO powders. To understand the influence of the NiO introduction, we fabricated two types of devices: (1) OLED with the NiO nanolayer and (2) OLED with the NiO-doped hole transport layer. Results show that the NiO introduction improved the hole injection in both types of OLED. However, the device with the NiO nanolayer exhibited greatly improved efficiency, whereas the efficiency was significantly lowered for the device with the NiO-doped hole transport layer.",

keywords = "Hole injection, Nanolayer, NiO, OLED, Thermal evaporation",

author = "Sungho Woo and Jaehyun Kim and Gwijeong Cho and Kangpil Kim and Hongkeun Lyu and Youngkyoo Kim",

note = "Funding Information: This work was supported by the DGIST Basic Research Program of the MEST (Ministry of Education, Science and Technology of the Korea Government). Y.K. thanks for the partial financial support by the Korea Science and Engineering Foundation (KOSEF) grant ( R01-2007-000-10836-0 ).",

year = "2009",

month = sep,

day = "25",

doi = "10.1016/j.jiec.2009.09.051",

language = "English",

volume = "15",

pages = "716--718",

journal = "Journal of Industrial and Engineering Chemistry",

issn = "1226-086X",

publisher = "Korean Society of Industrial Engineering Chemistry",

number = "5",

}

TY - JOUR

T1 - Influence of nickel oxide nanolayer and doping in organic light-emitting devices

AU - Woo, Sungho

AU - Kim, Jaehyun

AU - Cho, Gwijeong

AU - Kim, Kangpil

AU - Lyu, Hongkeun

AU - Kim, Youngkyoo

N1 - Funding Information: This work was supported by the DGIST Basic Research Program of the MEST (Ministry of Education, Science and Technology of the Korea Government). Y.K. thanks for the partial financial support by the Korea Science and Engineering Foundation (KOSEF) grant ( R01-2007-000-10836-0 ).

PY - 2009/9/25

Y1 - 2009/9/25

N2 - Here we report the effect of introducing nickel oxide (NiO) on the performance of organic light-emitting devices (OLEDs) based on small molecules. For the purpose of aligning the NiO deposition with the conventional OLED process, we employed a thermal evaporation method using the NiO powders. To understand the influence of the NiO introduction, we fabricated two types of devices: (1) OLED with the NiO nanolayer and (2) OLED with the NiO-doped hole transport layer. Results show that the NiO introduction improved the hole injection in both types of OLED. However, the device with the NiO nanolayer exhibited greatly improved efficiency, whereas the efficiency was significantly lowered for the device with the NiO-doped hole transport layer.

AB - Here we report the effect of introducing nickel oxide (NiO) on the performance of organic light-emitting devices (OLEDs) based on small molecules. For the purpose of aligning the NiO deposition with the conventional OLED process, we employed a thermal evaporation method using the NiO powders. To understand the influence of the NiO introduction, we fabricated two types of devices: (1) OLED with the NiO nanolayer and (2) OLED with the NiO-doped hole transport layer. Results show that the NiO introduction improved the hole injection in both types of OLED. However, the device with the NiO nanolayer exhibited greatly improved efficiency, whereas the efficiency was significantly lowered for the device with the NiO-doped hole transport layer.

KW - Hole injection

KW - Nanolayer

KW - NiO

KW - OLED

KW - Thermal evaporation

UR - https://www.scopus.com/pages/publications/70449529784

U2 - 10.1016/j.jiec.2009.09.051

DO - 10.1016/j.jiec.2009.09.051

M3 - Article

AN - SCOPUS:70449529784

SN - 1226-086X

VL - 15

SP - 716

EP - 718

JO - Journal of Industrial and Engineering Chemistry

JF - Journal of Industrial and Engineering Chemistry

IS - 5

ER -

Influence of nickel oxide nanolayer and doping in organic light-emitting devices

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Cite this