Solution-processed small molecule thin films and their light-emitting devices

Lin He; Junfeng Liu; Zhaoxin Wu; Dongdong Wang; Shixiong Liang; Xinwen Zhang; Bo Jiao; Dawei Wang; Xun Hou

doi:10.1016/j.tsf.2009.11.002

Solution-processed small molecule thin films and their light-emitting devices

Lin He
, Junfeng Liu
, Zhaoxin Wu
, Dongdong Wang
, Shixiong Liang
, Xinwen Zhang
, Bo Jiao
, Dawei Wang
, Xun Hou

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

10 Scopus citations

Abstract

Thin films of N,N′-bis-(3-Naphthyl)-N,N′-biphenyl-(1,1′-biphenyl)-4,4′-diamine (NPB), tris-(8-hydroxyquinoline)-aluminum (Alq₃) and their blends prepared by spin-coating process were investigated. Experimental results revealed that the NPB films prepared by spin-coating process have smoother surface than that of Alq₃, which was attributed to their different molecular structures. Organic light-emitting devices (OLEDs) with emitting layer prepared by spin-coating the blends of NPB and Alq₃ exhibited a maximum luminance and a current efficiency over 10,000 cd/m² and 3.8 cd/A respectively, and when 10-(2-benzothiazolyl)-2,3,6,7-tetrahydro-1,1,7,7-tetramethyl-1H,5H,11H-[l]benzopyrano[6,7,8-ij]quinolizin-11-one was doped in, a current efficiency of 8 cd/A can be obtained. Comparative device performance to the vapor-deposited OLEDs suggested that solution-process could be an alternative route for the fabrication of OLEDs based on Alq₃.

Original language	English
Pages (from-to)	3886-3890
Number of pages	5
Journal	Thin Solid Films
Volume	518
Issue number	14
DOIs	https://doi.org/10.1016/j.tsf.2009.11.002
State	Published - 3 May 2010
Externally published	Yes

Keywords

Organic light-emitting diodes
Organic small molecules
Solution process

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10.1016/j.tsf.2009.11.002

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@article{cef943863f7e49cab271b7dd3253ba82,

title = "Solution-processed small molecule thin films and their light-emitting devices",

abstract = "Thin films of N,N′-bis-(3-Naphthyl)-N,N′-biphenyl-(1,1′-biphenyl)-4,4′-diamine (NPB), tris-(8-hydroxyquinoline)-aluminum (Alq3) and their blends prepared by spin-coating process were investigated. Experimental results revealed that the NPB films prepared by spin-coating process have smoother surface than that of Alq3, which was attributed to their different molecular structures. Organic light-emitting devices (OLEDs) with emitting layer prepared by spin-coating the blends of NPB and Alq3 exhibited a maximum luminance and a current efficiency over 10,000 cd/m2 and 3.8 cd/A respectively, and when 10-(2-benzothiazolyl)-2,3,6,7-tetrahydro-1,1,7,7-tetramethyl-1H,5H,11H-[l]benzopyrano[6,7,8-ij]quinolizin-11-one was doped in, a current efficiency of 8 cd/A can be obtained. Comparative device performance to the vapor-deposited OLEDs suggested that solution-process could be an alternative route for the fabrication of OLEDs based on Alq3.",

keywords = "Organic light-emitting diodes, Organic small molecules, Solution process",

author = "Lin He and Junfeng Liu and Zhaoxin Wu and Dongdong Wang and Shixiong Liang and Xinwen Zhang and Bo Jiao and Dawei Wang and Xun Hou",

year = "2010",

month = may,

day = "3",

doi = "10.1016/j.tsf.2009.11.002",

language = "英语",

volume = "518",

pages = "3886--3890",

journal = "Thin Solid Films",

issn = "0040-6090",

publisher = "Elsevier B.V.",

number = "14",

}

TY - JOUR

T1 - Solution-processed small molecule thin films and their light-emitting devices

AU - He, Lin

AU - Liu, Junfeng

AU - Wu, Zhaoxin

AU - Wang, Dongdong

AU - Liang, Shixiong

AU - Zhang, Xinwen

AU - Jiao, Bo

AU - Wang, Dawei

AU - Hou, Xun

PY - 2010/5/3

Y1 - 2010/5/3

N2 - Thin films of N,N′-bis-(3-Naphthyl)-N,N′-biphenyl-(1,1′-biphenyl)-4,4′-diamine (NPB), tris-(8-hydroxyquinoline)-aluminum (Alq3) and their blends prepared by spin-coating process were investigated. Experimental results revealed that the NPB films prepared by spin-coating process have smoother surface than that of Alq3, which was attributed to their different molecular structures. Organic light-emitting devices (OLEDs) with emitting layer prepared by spin-coating the blends of NPB and Alq3 exhibited a maximum luminance and a current efficiency over 10,000 cd/m2 and 3.8 cd/A respectively, and when 10-(2-benzothiazolyl)-2,3,6,7-tetrahydro-1,1,7,7-tetramethyl-1H,5H,11H-[l]benzopyrano[6,7,8-ij]quinolizin-11-one was doped in, a current efficiency of 8 cd/A can be obtained. Comparative device performance to the vapor-deposited OLEDs suggested that solution-process could be an alternative route for the fabrication of OLEDs based on Alq3.

AB - Thin films of N,N′-bis-(3-Naphthyl)-N,N′-biphenyl-(1,1′-biphenyl)-4,4′-diamine (NPB), tris-(8-hydroxyquinoline)-aluminum (Alq3) and their blends prepared by spin-coating process were investigated. Experimental results revealed that the NPB films prepared by spin-coating process have smoother surface than that of Alq3, which was attributed to their different molecular structures. Organic light-emitting devices (OLEDs) with emitting layer prepared by spin-coating the blends of NPB and Alq3 exhibited a maximum luminance and a current efficiency over 10,000 cd/m2 and 3.8 cd/A respectively, and when 10-(2-benzothiazolyl)-2,3,6,7-tetrahydro-1,1,7,7-tetramethyl-1H,5H,11H-[l]benzopyrano[6,7,8-ij]quinolizin-11-one was doped in, a current efficiency of 8 cd/A can be obtained. Comparative device performance to the vapor-deposited OLEDs suggested that solution-process could be an alternative route for the fabrication of OLEDs based on Alq3.

KW - Organic light-emitting diodes

KW - Organic small molecules

KW - Solution process

UR - https://www.scopus.com/pages/publications/77950523338

U2 - 10.1016/j.tsf.2009.11.002

DO - 10.1016/j.tsf.2009.11.002

M3 - 文章

AN - SCOPUS:77950523338

SN - 0040-6090

VL - 518

SP - 3886

EP - 3890

JO - Thin Solid Films

JF - Thin Solid Films

IS - 14

ER -

Solution-processed small molecule thin films and their light-emitting devices

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Keywords

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