Charge transport study of chemically synthesized polypyrroles soluble in organic solvents

J. Joo; Y. C. Chung; J. K. Lee; J. K. Hong; W. P. Lee; S. M. Long; A. J. Epstein; H. S. Woo; K. S. Jang; E. J. Oh

doi:10.1016/s0379-6779(96)04168-9

Charge transport study of chemically synthesized polypyrroles soluble in organic solvents

J. Joo, Y. C. Chung, J. K. Lee, J. K. Hong, W. P. Lee, S. M. Long, A. J. Epstein, H. S. Woo, K. S. Jang, E. J. Oh

Department of Physics

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

10 Citations (Scopus)

Abstract

We report the results of temperature (T) dependence of dc conductivity (σ_dc), microwave dielectric constant, and EPR experiment for soluble polypyrrole (PPY) samples with different dopants (DBSA and NSA) prepared using various organic solvents (NMP, m-cresol, CHCl₃, and DMSO). The three dimensional variable range hopping (VRH) model provides the best fit to the data, while the slope of σ_dc(T) varies with dopants and solvents used. σ_dc at room temperature is ∼ 0.2 - 0.01 S/cm and the localization length is estimated as ≤ 15 Å, which indicates the relatively strong localization of charge for these materials. We discuss the relation between the polarity of solvent and σ_dc(T). From EPR experiment, the density of states of the systems is estimated.

Original language	English
Pages (from-to)	831-832
Number of pages	2
Journal	Synthetic Metals
Volume	84
Issue number	1-3
DOIs	https://doi.org/10.1016/s0379-6779(96)04168-9
Publication status	Published - 1997 Jan

Keywords

Conductivity
Hall effect
Polypyrrole and derivatives
Solution processing
Transport measurements

ASJC Scopus subject areas

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

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10.1016/s0379-6779(96)04168-9

Cite this

@article{2d5bab98584f46209414b7ca3bb7ebcf,

title = "Charge transport study of chemically synthesized polypyrroles soluble in organic solvents",

abstract = "We report the results of temperature (T) dependence of dc conductivity (σdc), microwave dielectric constant, and EPR experiment for soluble polypyrrole (PPY) samples with different dopants (DBSA and NSA) prepared using various organic solvents (NMP, m-cresol, CHCl3, and DMSO). The three dimensional variable range hopping (VRH) model provides the best fit to the data, while the slope of σdc(T) varies with dopants and solvents used. σdc at room temperature is ∼ 0.2 - 0.01 S/cm and the localization length is estimated as ≤ 15 {\AA}, which indicates the relatively strong localization of charge for these materials. We discuss the relation between the polarity of solvent and σdc(T). From EPR experiment, the density of states of the systems is estimated.",

keywords = "Conductivity, Hall effect, Polypyrrole and derivatives, Solution processing, Transport measurements",

author = "J. Joo and Chung, {Y. C.} and Lee, {J. K.} and Hong, {J. K.} and Lee, {W. P.} and Long, {S. M.} and Epstein, {A. J.} and Woo, {H. S.} and Jang, {K. S.} and Oh, {E. J.}",

note = "Funding Information: This work was supported in part by Basic Science Research Grant (BSRI-96-2444) of the Ministry of Education, Korea and Korea Science and Engineer Foundation (KOSEF), and NSF-DMR-9508723.",

year = "1997",

month = jan,

doi = "10.1016/s0379-6779(96)04168-9",

language = "English",

volume = "84",

pages = "831--832",

journal = "Synthetic Metals",

issn = "0379-6779",

publisher = "Elsevier BV",

number = "1-3",

}

TY - JOUR

T1 - Charge transport study of chemically synthesized polypyrroles soluble in organic solvents

AU - Joo, J.

AU - Chung, Y. C.

AU - Lee, J. K.

AU - Hong, J. K.

AU - Lee, W. P.

AU - Long, S. M.

AU - Epstein, A. J.

AU - Woo, H. S.

AU - Jang, K. S.

AU - Oh, E. J.

N1 - Funding Information: This work was supported in part by Basic Science Research Grant (BSRI-96-2444) of the Ministry of Education, Korea and Korea Science and Engineer Foundation (KOSEF), and NSF-DMR-9508723.

PY - 1997/1

Y1 - 1997/1

N2 - We report the results of temperature (T) dependence of dc conductivity (σdc), microwave dielectric constant, and EPR experiment for soluble polypyrrole (PPY) samples with different dopants (DBSA and NSA) prepared using various organic solvents (NMP, m-cresol, CHCl3, and DMSO). The three dimensional variable range hopping (VRH) model provides the best fit to the data, while the slope of σdc(T) varies with dopants and solvents used. σdc at room temperature is ∼ 0.2 - 0.01 S/cm and the localization length is estimated as ≤ 15 Å, which indicates the relatively strong localization of charge for these materials. We discuss the relation between the polarity of solvent and σdc(T). From EPR experiment, the density of states of the systems is estimated.

AB - We report the results of temperature (T) dependence of dc conductivity (σdc), microwave dielectric constant, and EPR experiment for soluble polypyrrole (PPY) samples with different dopants (DBSA and NSA) prepared using various organic solvents (NMP, m-cresol, CHCl3, and DMSO). The three dimensional variable range hopping (VRH) model provides the best fit to the data, while the slope of σdc(T) varies with dopants and solvents used. σdc at room temperature is ∼ 0.2 - 0.01 S/cm and the localization length is estimated as ≤ 15 Å, which indicates the relatively strong localization of charge for these materials. We discuss the relation between the polarity of solvent and σdc(T). From EPR experiment, the density of states of the systems is estimated.

KW - Conductivity

KW - Hall effect

KW - Polypyrrole and derivatives

KW - Solution processing

KW - Transport measurements

UR - http://www.scopus.com/inward/record.url?scp=0030645801&partnerID=8YFLogxK

U2 - 10.1016/s0379-6779(96)04168-9

DO - 10.1016/s0379-6779(96)04168-9

M3 - Article

AN - SCOPUS:0030645801

SN - 0379-6779

VL - 84

SP - 831

EP - 832

JO - Synthetic Metals

JF - Synthetic Metals

IS - 1-3

ER -

Charge transport study of chemically synthesized polypyrroles soluble in organic solvents

Abstract

Keywords

ASJC Scopus subject areas

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