The concept of secondary doping as applied to polyaniline

MacDiarmid, Alan G.; Epstein, Arthur J.

doi:10.1016/0379-6779(94)90171-6

Cited by 854 publications

(503 citation statements)

References 19 publications

Supporting

Mentioning

468

Contrasting

Unclassified

Order By: Relevance

“…The spectrum of untreated PANI-PAAMPSA film exhibits a broad band that is attributed to the π-π Ã transition between 310 and 450 nm and a polaron transition at approximately 800 nm (20,23). Both absorptions are characteristic of PANI having a compact coil conformation; this spectrum is generally associated with PANI having low conductivities (0.01-1 S∕cm) (13,19). The UV-vis-NIR spectrum of DCA-treated PANI-PAAMPSA shows significant absorption that extends into the NIR region.…”

mentioning

confidence: 99%

“…Elucidation of the origin of conductivity enhancement is further complicated by the fact that these reagents are highly specific to PEDOT-PSS; exposing water-dispersible, polymer acid templated PANI to these reagents does not improve its conductivity. Although conductivity enhancement has been demonstrated with the secondary doping of smallmolecule acid doped PANI with exposure to select solvents (13,19,20), there have been no reports to date of postdeposition conductivity enhancement in polymer acid templated PANI.…”

mentioning

confidence: 99%

“…Exposing conducting polymers to selective reagents can improve electrical conductivities through a process known as secondary doping (13)(14)(15)(16)(17)(18). When commercially available PEDOT that is template synthesized with poly(styrene sulfonic acid), PEDOT-PSS, is exposed to sorbitol (16), dimethylsulfoxide (17), or ethylene glycol (18), for example, its electrical conductivity can be improved by an order of magnitude.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Directly patternable, highly conducting polymers for broad applications in organic electronics

Yoo

Lee

García

et al. 2010

Proc. Natl. Acad. Sci. U.S.A.

127

156

View full text Add to dashboard Cite

Postdeposition solvent annealing of water-dispersible conducting polymers induces dramatic structural rearrangement and improves electrical conductivities by more than two orders of magnitude. We attain electrical conductivities in excess of 50 S∕cm when polyaniline films are exposed to dichloroacetic acid. Subjecting commercially available poly(ethylene dioxythiophene) to the same treatment yields a conductivity as high as 250 S∕cm. This process has enabled the wide incorporation of conducting polymers in organic electronics; conducting polymers that are not typically processable can now be deposited from solution and their conductivities subsequently enhanced to practical levels via a simple and straightforward solvent annealing process. The treated conducting polymers are thus promising alternatives for metals as source and drain electrodes in organic thin-film transistors as well as for transparent metal oxide conductors as anodes in organic solar cells and light-emitting diodes.electrical conductivity | solar cells | thin-film transistors | light-emitting diodes | polyaniline

show abstract

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Directly patternable, highly conducting polymers for broad applications in organic electronics

Yoo

Lee

García

et al. 2010

Proc. Natl. Acad. Sci. U.S.A.

127

156

View full text Add to dashboard Cite

show abstract

“…A few studies on the enhanced conductivity in PEDOT systems by a change of organic solvents have been reported. MacDiarmid and Epstein reported that the addition of m-cresol to camphorsufonic acid-doped polyaniline (PAni-CSA) led to increase in conductivity by the so-called secondary doping effect, in which the organic solvent changed the molecular conformation of polyaniline chain from compact coil to expanded coil [20,21]. Studies on PEDOT/PSS with organic solvents provide an alternative interpretation on the solvent effect that an increase in the conductivity of PEDOT/ PSS with dimethyl sulfoxide (DMSO) is mainly because of to the screening effects between counter ions and charge carriers induced by polar solvents [22].…”

Section: Introductionmentioning

confidence: 99%

Recovery and characterization of pure poly(3,4‐ethylenedioxythiophene) via biomimetic template polymerization

Huh

Kim

et al. 2006

Polymer Engineering & Sci

View full text Add to dashboard Cite

The fundamental properties of pure poly(3,4‐thylenedioxythiophene) (PEDOT), one of the most common electrically conducting organic polymers, are the key to the development of more prominent applications in which PEDOT and its derivatives can be utilized. Conducting molecular complex of PEDOT with silica was synthesized in the presence of charged silica template by the in situ biomimetic polymerization. To remove silica from PEDOT/template complex, hydrofluoric acid was used to etch silica particles. The electrochemical, thermal, and optical properties of pure PEDOT recovered were investigated in comparison with those of EDOT monomer or PEDOT with template by using UV–vis–near–IR spectra, cyclic voltammetry, thermogravimetric analysis, and fluorescence spectra. POLYM. ENG. SCI., 47:71–75, 2007. © 2006 Society of Plastics Engineers

show abstract

“…Nanostructured polyanilines have attracted much attention because of their potential applications such as chemical and biological sensors [2,3], surface modified electrode [4], biocompatible material [5], artificial muscles [6], and anticorrosion coating [7]. Many synthesis methods [8][9][10][11][12][13] have been reported to prepare nanosized polyaniline.…”

Section: Introductionmentioning

confidence: 99%

Controlled Synthesis of Nanosized Polyaniline via Unstirred, Liquid-Liquid Interfacial Polymerization Process

Thorat¹,

Kulkarni²,

Thorat³

2015

ChChT

View full text Add to dashboard Cite

Abstract. Nanorods/nanofibers of polyaniline were synthesized via liquid-liquid interfacial polymerization process using ammonium persulphate as an oxidizing agent. Para-toluene sulphonic acid (p-TSA) was used as a dopant during the polymerization process. The spectroscopic characterization (UV-Vis and FT-IR) confirms the presence of conducting emeraldine salt phase of the polymer. The morphological studies were carried out using FE-SEM analysis.

show abstract

The concept of secondary doping as applied to polyaniline

Cited by 854 publications

References 19 publications

Directly patternable, highly conducting polymers for broad applications in organic electronics

Directly patternable, highly conducting polymers for broad applications in organic electronics

Recovery and characterization of pure poly(3,4‐ethylenedioxythiophene) via biomimetic template polymerization

Controlled Synthesis of Nanosized Polyaniline via Unstirred, Liquid-Liquid Interfacial Polymerization Process

Contact Info

Product

Resources

About