Impedance spectroscopy of a poly(p-phenylenevinylene)-based light-emitting diode device

S. H. Kim; J. W. Jang; K. W. Lee; Cheol Eui Lee; S. W. Kim

doi:10.1016/S0038-1098(03)00662-8

Impedance spectroscopy of a poly(p-phenylenevinylene)-based light-emitting diode device

S. H. Kim, J. W. Jang, K. W. Lee, Cheol Eui Lee, S. W. Kim

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

13 Citations (Scopus)

Abstract

A poly-p-phenylenevinylene (PPV)-based light-emitting diode (LED) device was studied by means of comprehensive ac impedance measurements. Separate regions of frequency-dependent responses, the bulk and depleted (interface) regions, with distinct electrical properties, were identified and characterized. The ac J-E characteristics revealed the space-charge limited conduction mechanism, which was specifically assigned to the depleted region. Besides, a direct estimate of the trap density in the bulk region was obtained from the applied voltage dependence of the charge concentration.

Original language	English
Pages (from-to)	143-146
Number of pages	4
Journal	Solid State Communications
Volume	128
Issue number	4
DOIs	https://doi.org/10.1016/S0038-1098(03)00662-8
Publication status	Published - 2003 Oct

Bibliographical note

Funding Information:
This work was supported by the KISTEP (National Research Laboratory and Proton Accelerator User Program No. M102KS010001-02K1901-01814) and by the Brain Korea 21 Project in 2003.

Keywords

A. Polymers, elastomers, and plastics
D. Dielectric response
D. Electronic transport

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Materials Chemistry

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10.1016/S0038-1098(03)00662-8

Cite this

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title = "Impedance spectroscopy of a poly(p-phenylenevinylene)-based light-emitting diode device",

abstract = "A poly-p-phenylenevinylene (PPV)-based light-emitting diode (LED) device was studied by means of comprehensive ac impedance measurements. Separate regions of frequency-dependent responses, the bulk and depleted (interface) regions, with distinct electrical properties, were identified and characterized. The ac J-E characteristics revealed the space-charge limited conduction mechanism, which was specifically assigned to the depleted region. Besides, a direct estimate of the trap density in the bulk region was obtained from the applied voltage dependence of the charge concentration.",

keywords = "A. Polymers, elastomers, and plastics, D. Dielectric response, D. Electronic transport",

author = "Kim, {S. H.} and Jang, {J. W.} and Lee, {K. W.} and Lee, {Cheol Eui} and Kim, {S. W.}",

note = "Funding Information: This work was supported by the KISTEP (National Research Laboratory and Proton Accelerator User Program No. M102KS010001-02K1901-01814) and by the Brain Korea 21 Project in 2003.",

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doi = "10.1016/S0038-1098(03)00662-8",

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T1 - Impedance spectroscopy of a poly(p-phenylenevinylene)-based light-emitting diode device

AU - Kim, S. H.

AU - Jang, J. W.

AU - Lee, K. W.

AU - Lee, Cheol Eui

AU - Kim, S. W.

N1 - Funding Information: This work was supported by the KISTEP (National Research Laboratory and Proton Accelerator User Program No. M102KS010001-02K1901-01814) and by the Brain Korea 21 Project in 2003.

PY - 2003/10

Y1 - 2003/10

N2 - A poly-p-phenylenevinylene (PPV)-based light-emitting diode (LED) device was studied by means of comprehensive ac impedance measurements. Separate regions of frequency-dependent responses, the bulk and depleted (interface) regions, with distinct electrical properties, were identified and characterized. The ac J-E characteristics revealed the space-charge limited conduction mechanism, which was specifically assigned to the depleted region. Besides, a direct estimate of the trap density in the bulk region was obtained from the applied voltage dependence of the charge concentration.

AB - A poly-p-phenylenevinylene (PPV)-based light-emitting diode (LED) device was studied by means of comprehensive ac impedance measurements. Separate regions of frequency-dependent responses, the bulk and depleted (interface) regions, with distinct electrical properties, were identified and characterized. The ac J-E characteristics revealed the space-charge limited conduction mechanism, which was specifically assigned to the depleted region. Besides, a direct estimate of the trap density in the bulk region was obtained from the applied voltage dependence of the charge concentration.

KW - A. Polymers, elastomers, and plastics

KW - D. Dielectric response

KW - D. Electronic transport

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DO - 10.1016/S0038-1098(03)00662-8

M3 - Article

AN - SCOPUS:0141571216

SN - 0038-1098

VL - 128

SP - 143

EP - 146

JO - Solid State Communications

JF - Solid State Communications

IS - 4

ER -

Impedance spectroscopy of a poly(p-phenylenevinylene)-based light-emitting diode device

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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