NANOSENSORS ENGINEERING:I. STRUCTURALLY MODULATED SnO2 NANOWIRES

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International Journal on Smart Sensing and Intelligent Systems

Professor Subhas Chandra Mukhopadhyay

Exeley Inc. (New York)

Subject: Computational Science & Engineering, Engineering, Electrical & Electronic

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VOLUME 3 , ISSUE 4 (December 2010) > List of articles

NANOSENSORS ENGINEERING:I. STRUCTURALLY MODULATED SnO2 NANOWIRES

S. Dmitriev *

Keywords : Nanostructure, Tin dioxide, Nanowire, Chemoresistor, Structural modulation, Morphology

Citation Information : International Journal on Smart Sensing and Intelligent Systems. Volume 3, Issue 4, Pages 643-654, DOI: https://doi.org/10.21307/ijssis-2017-413

License : (CC BY-NC-ND 4.0)

Published Online: 13-December-2017

ARTICLE

ABSTRACT

The results of research aimed at the gas sensing nanowires (NWs) engineering are presented. Structurally modulated SnO2 NWs were obtained at 900oС in the modified vapor-solid process, allowing that NW morphology could be encoded in a programmable way along its length. PVD technique was used for Ti/Au electrical contacts deposition and gas sensitive nanoscale chemiresistors formation.
Created nanostructures were characterized for their gas sensing performance. It was established that structurally-modulated NWs possess better gas sensitive characteristics in comparison with the straight ones. Obtained results are discussed from the positions of single-crystal “necks” formation in NWs.

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