Characterization of highly conducting lithium salt doped polyaniline films prepared from polymer solution

Kwang Sun Ryu; Bong Wong Moon; Jinsoo Joo; Soon Ho Chang

doi:10.1016/S0032-3861(01)00522-5

Characterization of highly conducting lithium salt doped polyaniline films prepared from polymer solution

Kwang Sun Ryu, Bong Wong Moon, Jinsoo Joo, Soon Ho Chang

Department of Physics

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

74 Citations (Scopus)

Abstract

We have developed a new method for preparing conducting polyaniline (Pani) films and investigated their chemical and physical properties by means of UV-Vis, FT-IR, EPR, XPS, and dc conductivity measurements. Conducting polyaniline films are prepared by casting from the solution of polyaniline with lithium salt. The free-standing films have relatively high dc conductivity without further treatment with HCl. The effects of lithium salts, such as LiBF₄, LiPF₆, and LiClO₄, and their concentrations on dc conductivity are studied. The dc conductivity of Pani-LiBF₄ film has been found to be better than those of Pani-LiPF₆ and Pani-LiClO₄ films. The dc conductivity of the systems increases with increasing lithium salt concentration in the range from 0.025 to 0.1 M, and exhibits a maximum value of ∼10^-1 S/cm when 0.1 M LiBF₄ is doped.

Original language	English
Pages (from-to)	9355-9360
Number of pages	6
Journal	Polymer
Volume	42
Issue number	23
DOIs	https://doi.org/10.1016/S0032-3861(01)00522-5
Publication status	Published - 2001 Aug 20

Keywords

Infrared spectroscopy
Solution processing
UV-Vis absorption

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1016/S0032-3861(01)00522-5

Cite this

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title = "Characterization of highly conducting lithium salt doped polyaniline films prepared from polymer solution",

abstract = "We have developed a new method for preparing conducting polyaniline (Pani) films and investigated their chemical and physical properties by means of UV-Vis, FT-IR, EPR, XPS, and dc conductivity measurements. Conducting polyaniline films are prepared by casting from the solution of polyaniline with lithium salt. The free-standing films have relatively high dc conductivity without further treatment with HCl. The effects of lithium salts, such as LiBF4, LiPF6, and LiClO4, and their concentrations on dc conductivity are studied. The dc conductivity of Pani-LiBF4 film has been found to be better than those of Pani-LiPF6 and Pani-LiClO4 films. The dc conductivity of the systems increases with increasing lithium salt concentration in the range from 0.025 to 0.1 M, and exhibits a maximum value of ∼10-1 S/cm when 0.1 M LiBF4 is doped.",

keywords = "Infrared spectroscopy, Solution processing, UV-Vis absorption",

author = "Ryu, {Kwang Sun} and Moon, {Bong Wong} and Jinsoo Joo and Chang, {Soon Ho}",

year = "2001",

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doi = "10.1016/S0032-3861(01)00522-5",

language = "English",

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journal = "Polymer",

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number = "23",

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TY - JOUR

T1 - Characterization of highly conducting lithium salt doped polyaniline films prepared from polymer solution

AU - Ryu, Kwang Sun

AU - Moon, Bong Wong

AU - Joo, Jinsoo

AU - Chang, Soon Ho

PY - 2001/8/20

Y1 - 2001/8/20

N2 - We have developed a new method for preparing conducting polyaniline (Pani) films and investigated their chemical and physical properties by means of UV-Vis, FT-IR, EPR, XPS, and dc conductivity measurements. Conducting polyaniline films are prepared by casting from the solution of polyaniline with lithium salt. The free-standing films have relatively high dc conductivity without further treatment with HCl. The effects of lithium salts, such as LiBF4, LiPF6, and LiClO4, and their concentrations on dc conductivity are studied. The dc conductivity of Pani-LiBF4 film has been found to be better than those of Pani-LiPF6 and Pani-LiClO4 films. The dc conductivity of the systems increases with increasing lithium salt concentration in the range from 0.025 to 0.1 M, and exhibits a maximum value of ∼10-1 S/cm when 0.1 M LiBF4 is doped.

AB - We have developed a new method for preparing conducting polyaniline (Pani) films and investigated their chemical and physical properties by means of UV-Vis, FT-IR, EPR, XPS, and dc conductivity measurements. Conducting polyaniline films are prepared by casting from the solution of polyaniline with lithium salt. The free-standing films have relatively high dc conductivity without further treatment with HCl. The effects of lithium salts, such as LiBF4, LiPF6, and LiClO4, and their concentrations on dc conductivity are studied. The dc conductivity of Pani-LiBF4 film has been found to be better than those of Pani-LiPF6 and Pani-LiClO4 films. The dc conductivity of the systems increases with increasing lithium salt concentration in the range from 0.025 to 0.1 M, and exhibits a maximum value of ∼10-1 S/cm when 0.1 M LiBF4 is doped.

KW - Infrared spectroscopy

KW - Solution processing

KW - UV-Vis absorption

UR - http://www.scopus.com/inward/record.url?scp=0035920795&partnerID=8YFLogxK

U2 - 10.1016/S0032-3861(01)00522-5

DO - 10.1016/S0032-3861(01)00522-5

M3 - Article

AN - SCOPUS:0035920795

SN - 0032-3861

VL - 42

SP - 9355

EP - 9360

JO - Polymer

JF - Polymer

IS - 23

ER -

Characterization of highly conducting lithium salt doped polyaniline films prepared from polymer solution

Abstract

Keywords

ASJC Scopus subject areas

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