Synthesis of BaCO 3 nanowires and their humidity sensitive property

Hulin Zhang, Chenguo Hu, Michao Zhang, Rusen Yang, Chunhua Zheng

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Barium carbonate (BaCO 3) nanowires have been synthesized for the first time by using the composite hydroxide mediated (CHM) method. The products are characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and transmission electron microscopy (TEM). Humidity sensors based on BaCO 3 nanowires have been fabricated. The response to humidity in static and dynamic measurement proves the ultrasensitive property of the sensors. The resistance changes from 386 MΩ to 7.1 MΩ as the relative humidity (RH) increases from 20% to 95%. The response and recovery time of the resistance is 16 s and 56 s versus the changes of relative humidity from 25% to 85%. These results indicate promising applications of BaCO 3 nanowires in a highly sensitive environmental monitoring and humidity control electronic device.

Original languageEnglish (US)
Pages (from-to)10706-10709
Number of pages4
JournalJournal of Nanoscience and Nanotechnology
Volume11
Issue number12
DOIs
StatePublished - 2011

Bibliographical note

Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.

Keywords

  • Barium carbonate
  • Humidity
  • Nanowire

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