High performance polymer light-emitting diodes with N-type metal oxide/conjugated polyelectrolyte hybrid charge transport layers

Ji Sun Park; Bo Ram Lee; Eunjae Jeong; Hyun Jung Lee; Ju Min Lee; Ji Seon Kim; Jin Young Kim; Han Young Woo; Sang Ouk Kim; Myoung Hoon Song

doi:10.1063/1.3653962

High performance polymer light-emitting diodes with N-type metal oxide/conjugated polyelectrolyte hybrid charge transport layers

Ji Sun Park^*
, Bo Ram Lee
, Eunjae Jeong
, Hyun Jung Lee
, Ju Min Lee
, Ji Seon Kim
, Jin Young Kim
, Han Young Woo
, Sang Ouk Kim
, Myoung Hoon Song

^*Corresponding author for this work

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

31 Citations (Scopus)

Abstract

We present an interfacial engineering strategy employing n-type-metal-oxide/conjugated-polyelectrolyte (CPE) hybrid charge-transport layers for highly efficient polymer light-emitting diodes (PLEDs). The hybrid metal-oxide/CPE layer facilitates electron-injection, while blocking hole-transport, and thereby maximizes electron-hole recombination within the emitting layer. A series of metal-oxide/CPE combinations were tested in inverted PLEDs (FTO/metal-oxide/CPE/F8BT/MoO₃/Au). Specifically, HfO ₂/CPE double layer achieved an electroluminescence (EL) efficiency of up to 25.8 cd/A (@ 6.4 V, one of the highest values reported for fluorescent PLEDs).

Original language	English
Article number	163305
Journal	Applied Physics Letters
Volume	99
Issue number	16
DOIs	https://doi.org/10.1063/1.3653962
Publication status	Published - 2011 Oct 17
Externally published	Yes

Bibliographical note

Funding Information:
The authors thank Cambridge Display Technology (CDT), Ltd., for supplying F8BT. This work was supported by the Mid-career Researcher Program (2010-0027764), the National Research Laboratory Program (R0A-2008-000-20057-0), the World Class University (WCU) program (R32-2008-000-10051-0, R31-2008-000-20004-0), and the National Research Foundation of Korea (2010-0028791, 2009-0071834).

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3653962

Cite this

@article{37f456859afe497aa639394a5928fa02,

title = "High performance polymer light-emitting diodes with N-type metal oxide/conjugated polyelectrolyte hybrid charge transport layers",

abstract = "We present an interfacial engineering strategy employing n-type-metal-oxide/conjugated-polyelectrolyte (CPE) hybrid charge-transport layers for highly efficient polymer light-emitting diodes (PLEDs). The hybrid metal-oxide/CPE layer facilitates electron-injection, while blocking hole-transport, and thereby maximizes electron-hole recombination within the emitting layer. A series of metal-oxide/CPE combinations were tested in inverted PLEDs (FTO/metal-oxide/CPE/F8BT/MoO3/Au). Specifically, HfO 2/CPE double layer achieved an electroluminescence (EL) efficiency of up to 25.8 cd/A (@ 6.4 V, one of the highest values reported for fluorescent PLEDs).",

author = "\{Sun Park\}, Ji and \{Ram Lee\}, Bo and Eunjae Jeong and Lee, \{Hyun Jung\} and \{Min Lee\}, Ju and Kim, \{Ji Seon\} and \{Young Kim\}, Jin and \{Young Woo\}, Han and \{Ouk Kim\}, Sang and \{Hoon Song\}, Myoung",

note = "Funding Information: The authors thank Cambridge Display Technology (CDT), Ltd., for supplying F8BT. This work was supported by the Mid-career Researcher Program (2010-0027764), the National Research Laboratory Program (R0A-2008-000-20057-0), the World Class University (WCU) program (R32-2008-000-10051-0, R31-2008-000-20004-0), and the National Research Foundation of Korea (2010-0028791, 2009-0071834). ",

year = "2011",

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day = "17",

doi = "10.1063/1.3653962",

language = "English",

volume = "99",

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T1 - High performance polymer light-emitting diodes with N-type metal oxide/conjugated polyelectrolyte hybrid charge transport layers

AU - Sun Park, Ji

AU - Ram Lee, Bo

AU - Jeong, Eunjae

AU - Lee, Hyun Jung

AU - Min Lee, Ju

AU - Kim, Ji Seon

AU - Young Kim, Jin

AU - Young Woo, Han

AU - Ouk Kim, Sang

AU - Hoon Song, Myoung

N1 - Funding Information: The authors thank Cambridge Display Technology (CDT), Ltd., for supplying F8BT. This work was supported by the Mid-career Researcher Program (2010-0027764), the National Research Laboratory Program (R0A-2008-000-20057-0), the World Class University (WCU) program (R32-2008-000-10051-0, R31-2008-000-20004-0), and the National Research Foundation of Korea (2010-0028791, 2009-0071834).

PY - 2011/10/17

Y1 - 2011/10/17

N2 - We present an interfacial engineering strategy employing n-type-metal-oxide/conjugated-polyelectrolyte (CPE) hybrid charge-transport layers for highly efficient polymer light-emitting diodes (PLEDs). The hybrid metal-oxide/CPE layer facilitates electron-injection, while blocking hole-transport, and thereby maximizes electron-hole recombination within the emitting layer. A series of metal-oxide/CPE combinations were tested in inverted PLEDs (FTO/metal-oxide/CPE/F8BT/MoO3/Au). Specifically, HfO 2/CPE double layer achieved an electroluminescence (EL) efficiency of up to 25.8 cd/A (@ 6.4 V, one of the highest values reported for fluorescent PLEDs).

AB - We present an interfacial engineering strategy employing n-type-metal-oxide/conjugated-polyelectrolyte (CPE) hybrid charge-transport layers for highly efficient polymer light-emitting diodes (PLEDs). The hybrid metal-oxide/CPE layer facilitates electron-injection, while blocking hole-transport, and thereby maximizes electron-hole recombination within the emitting layer. A series of metal-oxide/CPE combinations were tested in inverted PLEDs (FTO/metal-oxide/CPE/F8BT/MoO3/Au). Specifically, HfO 2/CPE double layer achieved an electroluminescence (EL) efficiency of up to 25.8 cd/A (@ 6.4 V, one of the highest values reported for fluorescent PLEDs).

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DO - 10.1063/1.3653962

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SN - 0003-6951

VL - 99

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 16

M1 - 163305

ER -

High performance polymer light-emitting diodes with N-type metal oxide/conjugated polyelectrolyte hybrid charge transport layers

Abstract

Bibliographical note

ASJC Scopus subject areas

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