Details
| Original language | English |
|---|---|
| Pages (from-to) | 11218-11222 |
| Number of pages | 5 |
| Journal | Angewandte Chemie - International Edition |
| Volume | 57 |
| Issue number | 35 |
| Early online date | 28 Jul 2018 |
| Publication status | Published - 27 Aug 2018 |
| Externally published | Yes |
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.
Keywords
- carbon nanoubes, chemiresistance, isoporous films, polymers, sensors
ASJC Scopus subject areas
- Chemical Engineering(all)
- Catalysis
- Chemistry(all)
- General Chemistry
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In: Angewandte Chemie - International Edition, Vol. 57, No. 35, 27.08.2018, p. 11218-11222.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Embedding 1D Conducting Channels into 3D Isoporous Polymer Films for High-Performance Humidity Sensing
AU - Shevate, Rahul
AU - Haque, Md Azimul
AU - Akhtar, Faheem Hassan
AU - Villalobos, Luis Francisco
AU - Wu, Tom
AU - Peinemann, Klaus Viktor
N1 - Funding Information: Research reported in this publication was supported by the King Abdullah University of Science and Technology (KAUST). Figures 2 b, 4, and the Table of Contents image was created by Xavier Pita, scientific illustrator at KAUST.
PY - 2018/8/27
Y1 - 2018/8/27
N2 - 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.
AB - 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.
KW - carbon nanoubes
KW - chemiresistance
KW - isoporous films
KW - polymers
KW - sensors
UR - http://www.scopus.com/inward/record.url?scp=85051866856&partnerID=8YFLogxK
U2 - 10.1002/anie.201804656
DO - 10.1002/anie.201804656
M3 - Article
C2 - 29956876
AN - SCOPUS:85051866856
VL - 57
SP - 11218
EP - 11222
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
SN - 1433-7851
IS - 35
ER -