Format

Send to

Choose Destination
See comment in PubMed Commons below
Chemphyschem. 2012 Apr 23;13(6):1395-403. doi: 10.1002/cphc.201200014. Epub 2012 Mar 23.

Design rules for nanogap-based hydrogen gas sensors.

Author information

1
Department of Materials Science and Engineering, Yonsei University, Seoul, Korea.

Abstract

Nanoscale gaps, which enable many research applications in fields such as chemical sensors, single-electron transistors, and molecular switching devices, have been extensively investigated over the past decade and have witnessed the evolution of related technologies. Importantly, nanoscale gaps employed in hydrogen-gas (H(2)) sensors have been used to reversibly detect H(2) in an On-Off manner, and function as platforms for enhancing sensing performance. Herein, we review recent advances in nanogap design for H(2) sensors and deal with various strategies to create these gaps, including fracture generation by H(2) exposure, deposition onto prestructured patterns, island formation on a surface, artificial manipulation methods, methods using hybrid materials, and recent approaches using elastomeric substrates. Furthermore, this review discusses a new nanogap design that advances sensing capabilities in order to meet the diverse needs of academia and industry.

PMID:
22447655
DOI:
10.1002/cphc.201200014
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Wiley
    Loading ...
    Support Center