Soluble processed low-voltage and high efficiency blue phosphorescent organic light-emitting devices using small molecule host systems

Yoo Jin Doh; Jung Soo Park; Woo Sik Jeon; Ramchandra Pode; Jang Hyuk Kwon

doi:10.1016/j.orgel.2012.01.003

Soluble processed low-voltage and high efficiency blue phosphorescent organic light-emitting devices using small molecule host systems

Yoo Jin Doh
, Jung Soo Park
, Woo Sik Jeon
, Ramchandra Pode
, Jang Hyuk Kwon

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

54 Citations (Scopus)

Abstract

We report low voltage driving and highly efficient blue phosphorescence organic light emitting diodes (PHOLEDs) fabricated by soluble process. A soluble small molecule mixed host system consisting of hole transporting 4,4',4'' tris(N-carbazolyl)triphenylamine (TCTA) and bipolar carrier transporting 2,6-bis(3-(carbazol-9-yl)phenyl)pyridine (26DCzPPy) exhibits high solubility with smooth surface properties. Moreover, this small molecule host shows the smoothest morphological property similar to a vacuum deposited amorphous film. A low driving voltage of 5.4 V at 1000 cd/m² and maximum external quantum efficiency 14.6% obtained in the solution processed blue PHOLEDs are useful for large area low cost manufacturing.

Original language	English
Pages (from-to)	586-592
Number of pages	7
Journal	Organic Electronics
Volume	13
Issue number	4
DOIs	https://doi.org/10.1016/j.orgel.2012.01.003
Publication status	Published - Apr 2012

Bibliographical note

Funding Information:
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology.

Keywords

Blue
OLED
Phosphorescence
Solution process

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10.1016/j.orgel.2012.01.003

Cite this

@article{313fa623ea1441db8e0b05e941b98bba,

title = "Soluble processed low-voltage and high efficiency blue phosphorescent organic light-emitting devices using small molecule host systems",

abstract = "We report low voltage driving and highly efficient blue phosphorescence organic light emitting diodes (PHOLEDs) fabricated by soluble process. A soluble small molecule mixed host system consisting of hole transporting 4,4',4'' tris(N-carbazolyl)triphenylamine (TCTA) and bipolar carrier transporting 2,6-bis(3-(carbazol-9-yl)phenyl)pyridine (26DCzPPy) exhibits high solubility with smooth surface properties. Moreover, this small molecule host shows the smoothest morphological property similar to a vacuum deposited amorphous film. A low driving voltage of 5.4 V at 1000 cd/m2 and maximum external quantum efficiency 14.6\% obtained in the solution processed blue PHOLEDs are useful for large area low cost manufacturing.",

keywords = "Blue, OLED, Phosphorescence, Solution process",

author = "Doh, \{Yoo Jin\} and Park, \{Jung Soo\} and Jeon, \{Woo Sik\} and Ramchandra Pode and Kwon, \{Jang Hyuk\}",

note = "Funding Information: This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology.",

year = "2012",

month = apr,

doi = "10.1016/j.orgel.2012.01.003",

language = "English",

volume = "13",

pages = "586--592",

journal = "Organic Electronics",

issn = "1566-1199",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Soluble processed low-voltage and high efficiency blue phosphorescent organic light-emitting devices using small molecule host systems

AU - Doh, Yoo Jin

AU - Park, Jung Soo

AU - Jeon, Woo Sik

AU - Pode, Ramchandra

AU - Kwon, Jang Hyuk

N1 - Funding Information: This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology.

PY - 2012/4

Y1 - 2012/4

N2 - We report low voltage driving and highly efficient blue phosphorescence organic light emitting diodes (PHOLEDs) fabricated by soluble process. A soluble small molecule mixed host system consisting of hole transporting 4,4',4'' tris(N-carbazolyl)triphenylamine (TCTA) and bipolar carrier transporting 2,6-bis(3-(carbazol-9-yl)phenyl)pyridine (26DCzPPy) exhibits high solubility with smooth surface properties. Moreover, this small molecule host shows the smoothest morphological property similar to a vacuum deposited amorphous film. A low driving voltage of 5.4 V at 1000 cd/m2 and maximum external quantum efficiency 14.6% obtained in the solution processed blue PHOLEDs are useful for large area low cost manufacturing.

AB - We report low voltage driving and highly efficient blue phosphorescence organic light emitting diodes (PHOLEDs) fabricated by soluble process. A soluble small molecule mixed host system consisting of hole transporting 4,4',4'' tris(N-carbazolyl)triphenylamine (TCTA) and bipolar carrier transporting 2,6-bis(3-(carbazol-9-yl)phenyl)pyridine (26DCzPPy) exhibits high solubility with smooth surface properties. Moreover, this small molecule host shows the smoothest morphological property similar to a vacuum deposited amorphous film. A low driving voltage of 5.4 V at 1000 cd/m2 and maximum external quantum efficiency 14.6% obtained in the solution processed blue PHOLEDs are useful for large area low cost manufacturing.

KW - Blue

KW - OLED

KW - Phosphorescence

KW - Solution process

UR - https://www.scopus.com/pages/publications/84862806977

U2 - 10.1016/j.orgel.2012.01.003

DO - 10.1016/j.orgel.2012.01.003

M3 - Article

AN - SCOPUS:84862806977

SN - 1566-1199

VL - 13

SP - 586

EP - 592

JO - Organic Electronics

JF - Organic Electronics

IS - 4

ER -

Soluble processed low-voltage and high efficiency blue phosphorescent organic light-emitting devices using small molecule host systems

Abstract

Bibliographical note

Keywords

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