Characterization of free-standing PEDOT: PSS/iron oxide nanoparticle composite thin films and application as conformable humidity sensors

Silvia Taccola, Francesco Greco, Alessandra Zucca, Claudia Innocenti, César De Julián Fernández, Giulio Campo, Claudio Sangregorio, Barbara Mazzolai, Virgilio Mattoli

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

In this study, a new simple, fast, and inexpensive technique for the preparation of free-standing nanocomposite ultrathin films based on the conductive polymer poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) and embedding iron oxide nanoparticles (NPs) is presented. These nanofilms were fabricated by a single step of spin-coated assisted deposition in conjunction with a release technique ("supporting layer technique") to detach them from the substrate. Free-standing nanofilms can be easily transferred onto several substrates due to their high conformability, preserving their functionalities. The effect of the addition of iron oxide nanoparticles on the structural and functional properties of the PEDOT:PSS nanofilms is investigated through topography, thickness, magnetic, magneto-optical activity, and conductivity characterizations. PEDOT:PSS and PEDOT:PSS/iron oxide NP nanofilms were tested as resistive humidity sensors. Their sensitivity to humidity was found to increase with increasing nanoparticle concentration. On the basis of these results, it is expected that these composites may furnish inexpensive and reliable means for relative humidity detection.

Original languageEnglish
Pages (from-to)6324-6332
Number of pages9
JournalACS Applied Materials and Interfaces
Volume5
Issue number13
DOIs
Publication statusPublished - 2013 Jul 10
Externally publishedYes

Fingerprint

Humidity sensors
Composite films
Humidity
Iron oxides
Nanoparticles
Polystyrenes
Thin films
Atmospheric humidity
Optical Rotation
Nanocomposites
Nanocomposite films
Ultrathin films
Substrates
Topography
Polymers
poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)
ferric oxide
polystyrene sulfonic acid
poly(3,4-ethylene dioxythiophene)
Composite materials

Keywords

  • humidity sensor
  • iron oxide
  • nanocomposite
  • PSS
  • thin film

ASJC Scopus subject areas

  • Materials Science(all)
  • Medicine(all)

Cite this

Characterization of free-standing PEDOT : PSS/iron oxide nanoparticle composite thin films and application as conformable humidity sensors. / Taccola, Silvia; Greco, Francesco; Zucca, Alessandra; Innocenti, Claudia; De Julián Fernández, César; Campo, Giulio; Sangregorio, Claudio; Mazzolai, Barbara; Mattoli, Virgilio.

In: ACS Applied Materials and Interfaces, Vol. 5, No. 13, 10.07.2013, p. 6324-6332.

Research output: Contribution to journalArticle

Taccola, S, Greco, F, Zucca, A, Innocenti, C, De Julián Fernández, C, Campo, G, Sangregorio, C, Mazzolai, B & Mattoli, V 2013, 'Characterization of free-standing PEDOT: PSS/iron oxide nanoparticle composite thin films and application as conformable humidity sensors', ACS Applied Materials and Interfaces, vol. 5, no. 13, pp. 6324-6332. https://doi.org/10.1021/am4013775
Taccola, Silvia ; Greco, Francesco ; Zucca, Alessandra ; Innocenti, Claudia ; De Julián Fernández, César ; Campo, Giulio ; Sangregorio, Claudio ; Mazzolai, Barbara ; Mattoli, Virgilio. / Characterization of free-standing PEDOT : PSS/iron oxide nanoparticle composite thin films and application as conformable humidity sensors. In: ACS Applied Materials and Interfaces. 2013 ; Vol. 5, No. 13. pp. 6324-6332.
@article{dbf3e7457a884e2b91d3a98b832375ce,
title = "Characterization of free-standing PEDOT: PSS/iron oxide nanoparticle composite thin films and application as conformable humidity sensors",
abstract = "In this study, a new simple, fast, and inexpensive technique for the preparation of free-standing nanocomposite ultrathin films based on the conductive polymer poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) and embedding iron oxide nanoparticles (NPs) is presented. These nanofilms were fabricated by a single step of spin-coated assisted deposition in conjunction with a release technique ({"}supporting layer technique{"}) to detach them from the substrate. Free-standing nanofilms can be easily transferred onto several substrates due to their high conformability, preserving their functionalities. The effect of the addition of iron oxide nanoparticles on the structural and functional properties of the PEDOT:PSS nanofilms is investigated through topography, thickness, magnetic, magneto-optical activity, and conductivity characterizations. PEDOT:PSS and PEDOT:PSS/iron oxide NP nanofilms were tested as resistive humidity sensors. Their sensitivity to humidity was found to increase with increasing nanoparticle concentration. On the basis of these results, it is expected that these composites may furnish inexpensive and reliable means for relative humidity detection.",
keywords = "humidity sensor, iron oxide, nanocomposite, PSS, thin film",
author = "Silvia Taccola and Francesco Greco and Alessandra Zucca and Claudia Innocenti and {De Juli{\'a}n Fern{\'a}ndez}, C{\'e}sar and Giulio Campo and Claudio Sangregorio and Barbara Mazzolai and Virgilio Mattoli",
year = "2013",
month = "7",
day = "10",
doi = "10.1021/am4013775",
language = "English",
volume = "5",
pages = "6324--6332",
journal = "ACS applied materials & interfaces",
issn = "1944-8244",
publisher = "American Chemical Society",
number = "13",

}

TY - JOUR

T1 - Characterization of free-standing PEDOT

T2 - PSS/iron oxide nanoparticle composite thin films and application as conformable humidity sensors

AU - Taccola, Silvia

AU - Greco, Francesco

AU - Zucca, Alessandra

AU - Innocenti, Claudia

AU - De Julián Fernández, César

AU - Campo, Giulio

AU - Sangregorio, Claudio

AU - Mazzolai, Barbara

AU - Mattoli, Virgilio

PY - 2013/7/10

Y1 - 2013/7/10

N2 - In this study, a new simple, fast, and inexpensive technique for the preparation of free-standing nanocomposite ultrathin films based on the conductive polymer poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) and embedding iron oxide nanoparticles (NPs) is presented. These nanofilms were fabricated by a single step of spin-coated assisted deposition in conjunction with a release technique ("supporting layer technique") to detach them from the substrate. Free-standing nanofilms can be easily transferred onto several substrates due to their high conformability, preserving their functionalities. The effect of the addition of iron oxide nanoparticles on the structural and functional properties of the PEDOT:PSS nanofilms is investigated through topography, thickness, magnetic, magneto-optical activity, and conductivity characterizations. PEDOT:PSS and PEDOT:PSS/iron oxide NP nanofilms were tested as resistive humidity sensors. Their sensitivity to humidity was found to increase with increasing nanoparticle concentration. On the basis of these results, it is expected that these composites may furnish inexpensive and reliable means for relative humidity detection.

AB - In this study, a new simple, fast, and inexpensive technique for the preparation of free-standing nanocomposite ultrathin films based on the conductive polymer poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) and embedding iron oxide nanoparticles (NPs) is presented. These nanofilms were fabricated by a single step of spin-coated assisted deposition in conjunction with a release technique ("supporting layer technique") to detach them from the substrate. Free-standing nanofilms can be easily transferred onto several substrates due to their high conformability, preserving their functionalities. The effect of the addition of iron oxide nanoparticles on the structural and functional properties of the PEDOT:PSS nanofilms is investigated through topography, thickness, magnetic, magneto-optical activity, and conductivity characterizations. PEDOT:PSS and PEDOT:PSS/iron oxide NP nanofilms were tested as resistive humidity sensors. Their sensitivity to humidity was found to increase with increasing nanoparticle concentration. On the basis of these results, it is expected that these composites may furnish inexpensive and reliable means for relative humidity detection.

KW - humidity sensor

KW - iron oxide

KW - nanocomposite

KW - PSS

KW - thin film

UR - http://www.scopus.com/inward/record.url?scp=84880061208&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84880061208&partnerID=8YFLogxK

U2 - 10.1021/am4013775

DO - 10.1021/am4013775

M3 - Article

C2 - 23802632

AN - SCOPUS:84880061208

VL - 5

SP - 6324

EP - 6332

JO - ACS applied materials & interfaces

JF - ACS applied materials & interfaces

SN - 1944-8244

IS - 13

ER -