Synthesis of BaCO 3 nanowires and their humidity sensitive property

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

doi:10.1166/jnn.2011.4066

Synthesis of BaCO ₃ nanowires and their humidity sensitive property

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

Mechanical Engineering

Research output: Contribution to journal › Article › peer-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 language	English (US)
Pages (from-to)	10706-10709
Number of pages	4
Journal	Journal of Nanoscience and Nanotechnology
Volume	11
Issue number	12
DOIs	https://doi.org/10.1166/jnn.2011.4066
State	Published - 2011

Bibliographical note

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

Keywords

Barium carbonate
Humidity
Nanowire

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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.",

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AU - Hu, Chenguo

AU - Zhang, Michao

AU - Yang, Rusen

AU - Zheng, Chunhua

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