The study of electrical and magnetic properties of LiPF6 doped polyaniline

Jinsoo Joo, H. G. Song, C. K. Jeong, J. S. Baeck, J. K. Lee, K. S. Ryu

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The results of temperature dependent dc conductivity, EPR magnetic susceptibility, and X-ray photoelectron spectroscopy experiments (XPS) are reported for polyaniline (PAN) doped with lithium hexafluorophosphate (LiPF6), PAN-LiPF6. DC conductivity (σdc) and its temperature dependence of PAN-LiPF6 samples vary with the average molecular weight (Mw) of polyaniline used and the composition of doping solution. The EPR linewidth and Pauli susceptibility (XP) depend on the Mw of PAN used. The σdc and the XP of the intermediate Mw PAN-LiPF6 samples are higher than those of the low Mw PAN samples, indicating more highly conducting state of the intermediate Mw PAN samples. Based on the results of XPS and EPR experiments, some portions of quinoid rings in emeraldine base form of PAN are transformed into benzenoid rings through LiPF6 doping process, indicating the formation of polarons. However, the existence of some portions of quinoid rings in PAN-LiPF6 samples after doping suggests an inhomogeneous doping or a pseudo doping.

Original languageEnglish
Pages (from-to)215-220
Number of pages6
JournalSynthetic Metals
Volume98
Issue number3
Publication statusPublished - 1999 Jan 1

Fingerprint

Polyaniline
Magnetic properties
Electric properties
electrical properties
magnetic properties
molecular weight
Molecular weight
Doping (additives)
rings
photoelectron spectroscopy
magnetic permeability
Paramagnetic resonance
conductivity
polarons
low molecular weights
x rays
X ray photoelectron spectroscopy
lithium
direct current
polyaniline

Keywords

  • Electrical and magnetic properties
  • LiPF
  • Polyaniline

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Polymers and Plastics

Cite this

Joo, J., Song, H. G., Jeong, C. K., Baeck, J. S., Lee, J. K., & Ryu, K. S. (1999). The study of electrical and magnetic properties of LiPF6 doped polyaniline. Synthetic Metals, 98(3), 215-220.

The study of electrical and magnetic properties of LiPF6 doped polyaniline. / Joo, Jinsoo; Song, H. G.; Jeong, C. K.; Baeck, J. S.; Lee, J. K.; Ryu, K. S.

In: Synthetic Metals, Vol. 98, No. 3, 01.01.1999, p. 215-220.

Research output: Contribution to journalArticle

Joo, J, Song, HG, Jeong, CK, Baeck, JS, Lee, JK & Ryu, KS 1999, 'The study of electrical and magnetic properties of LiPF6 doped polyaniline', Synthetic Metals, vol. 98, no. 3, pp. 215-220.
Joo J, Song HG, Jeong CK, Baeck JS, Lee JK, Ryu KS. The study of electrical and magnetic properties of LiPF6 doped polyaniline. Synthetic Metals. 1999 Jan 1;98(3):215-220.
Joo, Jinsoo ; Song, H. G. ; Jeong, C. K. ; Baeck, J. S. ; Lee, J. K. ; Ryu, K. S. / The study of electrical and magnetic properties of LiPF6 doped polyaniline. In: Synthetic Metals. 1999 ; Vol. 98, No. 3. pp. 215-220.
@article{0a69952132f0499a8250148a47a1e5f3,
title = "The study of electrical and magnetic properties of LiPF6 doped polyaniline",
abstract = "The results of temperature dependent dc conductivity, EPR magnetic susceptibility, and X-ray photoelectron spectroscopy experiments (XPS) are reported for polyaniline (PAN) doped with lithium hexafluorophosphate (LiPF6), PAN-LiPF6. DC conductivity (σdc) and its temperature dependence of PAN-LiPF6 samples vary with the average molecular weight (Mw) of polyaniline used and the composition of doping solution. The EPR linewidth and Pauli susceptibility (XP) depend on the Mw of PAN used. The σdc and the XP of the intermediate Mw PAN-LiPF6 samples are higher than those of the low Mw PAN samples, indicating more highly conducting state of the intermediate Mw PAN samples. Based on the results of XPS and EPR experiments, some portions of quinoid rings in emeraldine base form of PAN are transformed into benzenoid rings through LiPF6 doping process, indicating the formation of polarons. However, the existence of some portions of quinoid rings in PAN-LiPF6 samples after doping suggests an inhomogeneous doping or a pseudo doping.",
keywords = "Electrical and magnetic properties, LiPF, Polyaniline",
author = "Jinsoo Joo and Song, {H. G.} and Jeong, {C. K.} and Baeck, {J. S.} and Lee, {J. K.} and Ryu, {K. S.}",
year = "1999",
month = "1",
day = "1",
language = "English",
volume = "98",
pages = "215--220",
journal = "Synthetic Metals",
issn = "0379-6779",
publisher = "Elsevier BV",
number = "3",

}

TY - JOUR

T1 - The study of electrical and magnetic properties of LiPF6 doped polyaniline

AU - Joo, Jinsoo

AU - Song, H. G.

AU - Jeong, C. K.

AU - Baeck, J. S.

AU - Lee, J. K.

AU - Ryu, K. S.

PY - 1999/1/1

Y1 - 1999/1/1

N2 - The results of temperature dependent dc conductivity, EPR magnetic susceptibility, and X-ray photoelectron spectroscopy experiments (XPS) are reported for polyaniline (PAN) doped with lithium hexafluorophosphate (LiPF6), PAN-LiPF6. DC conductivity (σdc) and its temperature dependence of PAN-LiPF6 samples vary with the average molecular weight (Mw) of polyaniline used and the composition of doping solution. The EPR linewidth and Pauli susceptibility (XP) depend on the Mw of PAN used. The σdc and the XP of the intermediate Mw PAN-LiPF6 samples are higher than those of the low Mw PAN samples, indicating more highly conducting state of the intermediate Mw PAN samples. Based on the results of XPS and EPR experiments, some portions of quinoid rings in emeraldine base form of PAN are transformed into benzenoid rings through LiPF6 doping process, indicating the formation of polarons. However, the existence of some portions of quinoid rings in PAN-LiPF6 samples after doping suggests an inhomogeneous doping or a pseudo doping.

AB - The results of temperature dependent dc conductivity, EPR magnetic susceptibility, and X-ray photoelectron spectroscopy experiments (XPS) are reported for polyaniline (PAN) doped with lithium hexafluorophosphate (LiPF6), PAN-LiPF6. DC conductivity (σdc) and its temperature dependence of PAN-LiPF6 samples vary with the average molecular weight (Mw) of polyaniline used and the composition of doping solution. The EPR linewidth and Pauli susceptibility (XP) depend on the Mw of PAN used. The σdc and the XP of the intermediate Mw PAN-LiPF6 samples are higher than those of the low Mw PAN samples, indicating more highly conducting state of the intermediate Mw PAN samples. Based on the results of XPS and EPR experiments, some portions of quinoid rings in emeraldine base form of PAN are transformed into benzenoid rings through LiPF6 doping process, indicating the formation of polarons. However, the existence of some portions of quinoid rings in PAN-LiPF6 samples after doping suggests an inhomogeneous doping or a pseudo doping.

KW - Electrical and magnetic properties

KW - LiPF

KW - Polyaniline

UR - http://www.scopus.com/inward/record.url?scp=0032760485&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032760485&partnerID=8YFLogxK

M3 - Article

VL - 98

SP - 215

EP - 220

JO - Synthetic Metals

JF - Synthetic Metals

SN - 0379-6779

IS - 3

ER -