Blending MEH-PPV conjugate polymers with single-walled carbon nanotubes for polymer light-emitting diodes

Sung Pyo Lee; H. Choi; Kyu Won Lee; Kyu Hyun Mo; Jae Won Jang; Eunmo Lee; In Mook Kim; Cheol Eui Lee

Blending MEH-PPV conjugate polymers with single-walled carbon nanotubes for polymer light-emitting diodes

Sung Pyo Lee, H. Choi, Kyu Won Lee, Kyu Hyun Mo, Jae Won Jang, Eunmo Lee, In Mook Kim, Cheol Eui Lee

Research output: Contribution to journal › Review article › peer-review

Abstract

We report the effects of blending poly[2-methoxy-5-(2′-ethyl- hexyloxy)-p-phenylene-vinylene] (MEH-PPV) conjugate polymers with single-walled carbon nanotubes (SWNTs). The blend ratio of MEH-PPV/SWNT composites for polymer light-emitting diodes (PLEDs) ranged from 0 wt% to 1 wt% SWNTs. From time-of-flight (TOF) measurements, the electron mobility was observed to increase gradually with the weight percent of SWNTs while the hole mobility remained almost unchanged. According to the Poole-Frenkel model, an increase in the weight percent of SWNTs lowers the zero-field activation energy, suggesting that SWNTs effectively reduce the oxygen trap density. At a 0.2-wt% SWNTs concentration, the electron and the hole mobilities could be tuned for the highest external quantum efficiency.

Original language	English
Pages (from-to)	146-149
Number of pages	4
Journal	Journal of the Korean Physical Society
Volume	48
Issue number	1
Publication status	Published - 2006 Jan

Keywords

MEH-PPV polymer
Polymer light-emitting diode
Single-walled carbon nanotube
Time-of-flight measurement

ASJC Scopus subject areas

General Physics and Astronomy

Cite this

@article{51d6220dadb740cfb3a1157c075b90e5,

title = "Blending MEH-PPV conjugate polymers with single-walled carbon nanotubes for polymer light-emitting diodes",

abstract = "We report the effects of blending poly[2-methoxy-5-(2′-ethyl- hexyloxy)-p-phenylene-vinylene] (MEH-PPV) conjugate polymers with single-walled carbon nanotubes (SWNTs). The blend ratio of MEH-PPV/SWNT composites for polymer light-emitting diodes (PLEDs) ranged from 0 wt% to 1 wt% SWNTs. From time-of-flight (TOF) measurements, the electron mobility was observed to increase gradually with the weight percent of SWNTs while the hole mobility remained almost unchanged. According to the Poole-Frenkel model, an increase in the weight percent of SWNTs lowers the zero-field activation energy, suggesting that SWNTs effectively reduce the oxygen trap density. At a 0.2-wt% SWNTs concentration, the electron and the hole mobilities could be tuned for the highest external quantum efficiency.",

keywords = "MEH-PPV polymer, Polymer light-emitting diode, Single-walled carbon nanotube, Time-of-flight measurement",

author = "Lee, {Sung Pyo} and H. Choi and Lee, {Kyu Won} and Mo, {Kyu Hyun} and Jang, {Jae Won} and Eunmo Lee and Kim, {In Mook} and Lee, {Cheol Eui}",

year = "2006",

month = jan,

language = "English",

volume = "48",

pages = "146--149",

journal = "Journal of the Korean Physical Society",

issn = "0374-4884",

publisher = "Korean Physical Society",

number = "1",

}

TY - JOUR

T1 - Blending MEH-PPV conjugate polymers with single-walled carbon nanotubes for polymer light-emitting diodes

AU - Lee, Sung Pyo

AU - Choi, H.

AU - Lee, Kyu Won

AU - Mo, Kyu Hyun

AU - Jang, Jae Won

AU - Lee, Eunmo

AU - Kim, In Mook

AU - Lee, Cheol Eui

PY - 2006/1

Y1 - 2006/1

N2 - We report the effects of blending poly[2-methoxy-5-(2′-ethyl- hexyloxy)-p-phenylene-vinylene] (MEH-PPV) conjugate polymers with single-walled carbon nanotubes (SWNTs). The blend ratio of MEH-PPV/SWNT composites for polymer light-emitting diodes (PLEDs) ranged from 0 wt% to 1 wt% SWNTs. From time-of-flight (TOF) measurements, the electron mobility was observed to increase gradually with the weight percent of SWNTs while the hole mobility remained almost unchanged. According to the Poole-Frenkel model, an increase in the weight percent of SWNTs lowers the zero-field activation energy, suggesting that SWNTs effectively reduce the oxygen trap density. At a 0.2-wt% SWNTs concentration, the electron and the hole mobilities could be tuned for the highest external quantum efficiency.

AB - We report the effects of blending poly[2-methoxy-5-(2′-ethyl- hexyloxy)-p-phenylene-vinylene] (MEH-PPV) conjugate polymers with single-walled carbon nanotubes (SWNTs). The blend ratio of MEH-PPV/SWNT composites for polymer light-emitting diodes (PLEDs) ranged from 0 wt% to 1 wt% SWNTs. From time-of-flight (TOF) measurements, the electron mobility was observed to increase gradually with the weight percent of SWNTs while the hole mobility remained almost unchanged. According to the Poole-Frenkel model, an increase in the weight percent of SWNTs lowers the zero-field activation energy, suggesting that SWNTs effectively reduce the oxygen trap density. At a 0.2-wt% SWNTs concentration, the electron and the hole mobilities could be tuned for the highest external quantum efficiency.

KW - MEH-PPV polymer

KW - Polymer light-emitting diode

KW - Single-walled carbon nanotube

KW - Time-of-flight measurement

UR - http://www.scopus.com/inward/record.url?scp=32044464560&partnerID=8YFLogxK

M3 - Review article

AN - SCOPUS:32044464560

SN - 0374-4884

VL - 48

SP - 146

EP - 149

JO - Journal of the Korean Physical Society

JF - Journal of the Korean Physical Society

IS - 1

ER -

Blending MEH-PPV conjugate polymers with single-walled carbon nanotubes for polymer light-emitting diodes

Abstract

Keywords

ASJC Scopus subject areas

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