Insulator-metal transition of Li salts doped polyaniline

J. Joo; J. H. Jung; B. H. Kim; B. W. Moon; S. H. Chang; K. S. Ryu

doi:10.1016/S0379-6779(00)00702-5

Insulator-metal transition of Li salts doped polyaniline

J. Joo, J. H. Jung, B. H. Kim, B. W. Moon, S. H. Chang, K. S. Ryu

Department of Physics

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

6 Citations (Scopus)

Abstract

The results of dc conductivity (σ_dc), X-ray photoelectron spectroscopy (XPS), and electron paramagnetic resonance (EPR) for Li salts (LiPF₆, LiBF₄) doped polyaniline (PAN) are reported. Temperature (T) dependence of σ_dc of LiPF₆ or LiBF₄ doped PAN samples shows lnσ_dc ∝ T^-1/2 arising from a quasi-one-dimensional (1D) variable range hopping (VRH) model. As molar concentration increases, the insulator-metal transition is observed in the results of σ_dc and the density of states obtained from EPR experiments. The doping levels of the systems are obtained from XPS nitrogen (N) 1s peak analysis. The doping process and the insulator-metal transition of Li salts doped PAN samples are compared with those of HCl doped PAN samples.

Original language	English
Pages (from-to)	461-462
Number of pages	2
Journal	Synthetic Metals
Volume	119
Issue number	1-3
DOIs	https://doi.org/10.1016/S0379-6779(00)00702-5
Publication status	Published - 2001 Mar 15

Keywords

Batteries
Conductivity
Electron spin resonance
Metal-insulator phase transitions
Polyaniline and derivatives
Transport measurements

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/S0379-6779(00)00702-5

Cite this

@article{9c9496d4b0994c5fb56c15bda5d6bca7,

title = "Insulator-metal transition of Li salts doped polyaniline",

abstract = "The results of dc conductivity (σdc), X-ray photoelectron spectroscopy (XPS), and electron paramagnetic resonance (EPR) for Li salts (LiPF6, LiBF4) doped polyaniline (PAN) are reported. Temperature (T) dependence of σdc of LiPF6 or LiBF4 doped PAN samples shows lnσdc ∝ T-1/2 arising from a quasi-one-dimensional (1D) variable range hopping (VRH) model. As molar concentration increases, the insulator-metal transition is observed in the results of σdc and the density of states obtained from EPR experiments. The doping levels of the systems are obtained from XPS nitrogen (N) 1s peak analysis. The doping process and the insulator-metal transition of Li salts doped PAN samples are compared with those of HCl doped PAN samples.",

keywords = "Batteries, Conductivity, Electron spin resonance, Metal-insulator phase transitions, Polyaniline and derivatives, Transport measurements",

author = "J. Joo and Jung, {J. H.} and Kim, {B. H.} and Moon, {B. W.} and Chang, {S. H.} and Ryu, {K. S.}",

year = "2001",

month = mar,

day = "15",

doi = "10.1016/S0379-6779(00)00702-5",

language = "English",

volume = "119",

pages = "461--462",

journal = "Synthetic Metals",

issn = "0379-6779",

publisher = "Elsevier BV",

number = "1-3",

}

TY - JOUR

T1 - Insulator-metal transition of Li salts doped polyaniline

AU - Joo, J.

AU - Jung, J. H.

AU - Kim, B. H.

AU - Moon, B. W.

AU - Chang, S. H.

AU - Ryu, K. S.

PY - 2001/3/15

Y1 - 2001/3/15

N2 - The results of dc conductivity (σdc), X-ray photoelectron spectroscopy (XPS), and electron paramagnetic resonance (EPR) for Li salts (LiPF6, LiBF4) doped polyaniline (PAN) are reported. Temperature (T) dependence of σdc of LiPF6 or LiBF4 doped PAN samples shows lnσdc ∝ T-1/2 arising from a quasi-one-dimensional (1D) variable range hopping (VRH) model. As molar concentration increases, the insulator-metal transition is observed in the results of σdc and the density of states obtained from EPR experiments. The doping levels of the systems are obtained from XPS nitrogen (N) 1s peak analysis. The doping process and the insulator-metal transition of Li salts doped PAN samples are compared with those of HCl doped PAN samples.

AB - The results of dc conductivity (σdc), X-ray photoelectron spectroscopy (XPS), and electron paramagnetic resonance (EPR) for Li salts (LiPF6, LiBF4) doped polyaniline (PAN) are reported. Temperature (T) dependence of σdc of LiPF6 or LiBF4 doped PAN samples shows lnσdc ∝ T-1/2 arising from a quasi-one-dimensional (1D) variable range hopping (VRH) model. As molar concentration increases, the insulator-metal transition is observed in the results of σdc and the density of states obtained from EPR experiments. The doping levels of the systems are obtained from XPS nitrogen (N) 1s peak analysis. The doping process and the insulator-metal transition of Li salts doped PAN samples are compared with those of HCl doped PAN samples.

KW - Batteries

KW - Conductivity

KW - Electron spin resonance

KW - Metal-insulator phase transitions

KW - Polyaniline and derivatives

KW - Transport measurements

UR - http://www.scopus.com/inward/record.url?scp=0035867348&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035867348&partnerID=8YFLogxK

U2 - 10.1016/S0379-6779(00)00702-5

DO - 10.1016/S0379-6779(00)00702-5

M3 - Article

AN - SCOPUS:0035867348

SN - 0379-6779

VL - 119

SP - 461

EP - 462

JO - Synthetic Metals

JF - Synthetic Metals

IS - 1-3

ER -

Insulator-metal transition of Li salts doped polyaniline

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this