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 language | English (US) |
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Pages (from-to) | 11218-11222 |
Number of pages | 5 |
Journal | Angewandte Chemie - International Edition |
Volume | 57 |
Issue number | 35 |
DOIs | |
State | Published - 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