Enhanced charge storage of ultrathin polythiophene films within porous nanostructures

Siamak Nejati, Thomas E. Minford, Yuriy Y. Smolin, Kenneth K.S. Lau

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

In a single step polymerization and coating, oxidative chemical vapor deposition (oCVD) has been used to synthesize unsubstituted polythiophene. Coatings have been conformally coated within porous nanostructures of anodized aluminum oxide, titanium dioxide, and activated carbon. Significant enhancement in charge capacity has been found with ultrathin polythiophene coatings that preserve the surface area and pore space of the nanostructures. Pseudocapacitors consisting of ultrathin polythiophene coated within activated carbon yielded increases of 50 and 250% in specific and volumetric capacitance compared with bare activated carbon. Devices were stable up to the 5000 cycles tested with only a 10% decrease in capacitance.

Original languageEnglish (US)
Pages (from-to)5413-5422
Number of pages10
JournalACS Nano
Volume8
Issue number6
DOIs
StatePublished - Jun 24 2014

Fingerprint

activated carbon
Activated carbon
Nanostructures
coatings
Coatings
Polymers
Capacitance
capacitance
Aluminum Oxide
titanium oxides
Titanium dioxide
Chemical vapor deposition
polymerization
aluminum oxides
Polymerization
vapor deposition
porosity
Aluminum
cycles
Oxides

Keywords

  • activated carbon
  • nanostructured electrode
  • oxidative chemical vapor deposition (oCVD)
  • polythiophene
  • pseudocapacitor

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Enhanced charge storage of ultrathin polythiophene films within porous nanostructures. / Nejati, Siamak; Minford, Thomas E.; Smolin, Yuriy Y.; Lau, Kenneth K.S.

In: ACS Nano, Vol. 8, No. 6, 24.06.2014, p. 5413-5422.

Research output: Contribution to journalArticle

Nejati, Siamak ; Minford, Thomas E. ; Smolin, Yuriy Y. ; Lau, Kenneth K.S. / Enhanced charge storage of ultrathin polythiophene films within porous nanostructures. In: ACS Nano. 2014 ; Vol. 8, No. 6. pp. 5413-5422.
@article{0ad5b0d3e15b44b0bbec690014408cba,
title = "Enhanced charge storage of ultrathin polythiophene films within porous nanostructures",
abstract = "In a single step polymerization and coating, oxidative chemical vapor deposition (oCVD) has been used to synthesize unsubstituted polythiophene. Coatings have been conformally coated within porous nanostructures of anodized aluminum oxide, titanium dioxide, and activated carbon. Significant enhancement in charge capacity has been found with ultrathin polythiophene coatings that preserve the surface area and pore space of the nanostructures. Pseudocapacitors consisting of ultrathin polythiophene coated within activated carbon yielded increases of 50 and 250{\%} in specific and volumetric capacitance compared with bare activated carbon. Devices were stable up to the 5000 cycles tested with only a 10{\%} decrease in capacitance.",
keywords = "activated carbon, nanostructured electrode, oxidative chemical vapor deposition (oCVD), polythiophene, pseudocapacitor",
author = "Siamak Nejati and Minford, {Thomas E.} and Smolin, {Yuriy Y.} and Lau, {Kenneth K.S.}",
year = "2014",
month = "6",
day = "24",
doi = "10.1021/nn500007c",
language = "English (US)",
volume = "8",
pages = "5413--5422",
journal = "ACS Nano",
issn = "1936-0851",
publisher = "American Chemical Society",
number = "6",

}

TY - JOUR

T1 - Enhanced charge storage of ultrathin polythiophene films within porous nanostructures

AU - Nejati, Siamak

AU - Minford, Thomas E.

AU - Smolin, Yuriy Y.

AU - Lau, Kenneth K.S.

PY - 2014/6/24

Y1 - 2014/6/24

N2 - In a single step polymerization and coating, oxidative chemical vapor deposition (oCVD) has been used to synthesize unsubstituted polythiophene. Coatings have been conformally coated within porous nanostructures of anodized aluminum oxide, titanium dioxide, and activated carbon. Significant enhancement in charge capacity has been found with ultrathin polythiophene coatings that preserve the surface area and pore space of the nanostructures. Pseudocapacitors consisting of ultrathin polythiophene coated within activated carbon yielded increases of 50 and 250% in specific and volumetric capacitance compared with bare activated carbon. Devices were stable up to the 5000 cycles tested with only a 10% decrease in capacitance.

AB - In a single step polymerization and coating, oxidative chemical vapor deposition (oCVD) has been used to synthesize unsubstituted polythiophene. Coatings have been conformally coated within porous nanostructures of anodized aluminum oxide, titanium dioxide, and activated carbon. Significant enhancement in charge capacity has been found with ultrathin polythiophene coatings that preserve the surface area and pore space of the nanostructures. Pseudocapacitors consisting of ultrathin polythiophene coated within activated carbon yielded increases of 50 and 250% in specific and volumetric capacitance compared with bare activated carbon. Devices were stable up to the 5000 cycles tested with only a 10% decrease in capacitance.

KW - activated carbon

KW - nanostructured electrode

KW - oxidative chemical vapor deposition (oCVD)

KW - polythiophene

KW - pseudocapacitor

UR - http://www.scopus.com/inward/record.url?scp=84903482103&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84903482103&partnerID=8YFLogxK

U2 - 10.1021/nn500007c

DO - 10.1021/nn500007c

M3 - Article

C2 - 24840296

AN - SCOPUS:84903482103

VL - 8

SP - 5413

EP - 5422

JO - ACS Nano

JF - ACS Nano

SN - 1936-0851

IS - 6

ER -