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 Scopus citations

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
State	Published - 17 Oct 2011
Externally published	Yes

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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).",

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doi = "10.1063/1.3653962",

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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

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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U2 - 10.1063/1.3653962

DO - 10.1063/1.3653962

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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

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