Embedding 1D Conducting Channels into 3D Isoporous Polymer Films for High-Performance Humidity Sensing

Rahul Shevate, Mohammed Haque, Faheem Akhtar, Francisco Villalobos, Tao Wu, Klaus-Viktor Peinemann

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

Isoporous block copolymer (BCP) films have received exponential interest as highly selective membranes, stemming from their unique morphological features, but their applications in functional devices remain to be realized. Now single-walled carbon nanotubes (CNTs) were efficiently incorporated into isoporous block copolymer films for chemiresistive sensing at room temperature. Leveraging the efficient charge extraction ability of CNTs together with nanochannel arrays aligned perpendicular to the surface of the films, an ultrafast response time of 0.3 s was achieved for humidity detection with a sensor response of about 800 on changing humidity from 10 % to 95 %. Furthermore, the sensor also responds to various organic vapors, underscoring its promising detection capability.

Original languageEnglish (US)
Pages (from-to)11218-11222
Number of pages5
JournalAngewandte Chemie - International Edition
Volume57
Issue number35
DOIs
StatePublished - Aug 27 2018

Bibliographical note

Publisher Copyright:
© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

  • carbon nanoubes
  • chemiresistance
  • isoporous films
  • polymers
  • sensors

ASJC Scopus subject areas

  • General Chemistry
  • Catalysis

Fingerprint

Dive into the research topics of 'Embedding 1D Conducting Channels into 3D Isoporous Polymer Films for High-Performance Humidity Sensing'. Together they form a unique fingerprint.

Cite this