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

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

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3653962

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@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",

month = oct,

day = "17",

doi = "10.1063/1.3653962",

language = "English",

volume = "99",

journal = "Applied Physics Letters",

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publisher = "American Institute of Physics Publising LLC",

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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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JF - Applied Physics Letters

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ER -

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

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