Effects of Surfactants on the Performance of ZrO2 Humidity Sensors

DOI

10.2991/emim-17.2017.4How to use a DOI?

Keywords

Sensor; Surfactant; Resistance; ZrO2

Abstract

Nano-sized ZrO2 powders were synthesized by hydrothermal method with two types of surfactants (cetyltrimethyl ammonium bromide (cationic surfactant, CTAB), and sodium dodecylbenzene sulfonate (anionic surfactant, SDBS)). The phase structures and morphologies of the products were investigated by X-ray diffraction and scanning electron microscope. The sample with CTAB as surfactant (ZrO2-C) shows larger specific surface area and smaller particle size than ZrO2-S. The humidity sensor fabricated by ZrO2-C shows higher performance than the sample used SDBS as surfactant. The impedance of the ZrO2-C sensor decreases by about four orders of magnitude with relative humidity (RH) changed from 11 to 95%. The response and recovery time are 60 and 70 s, respectively. These results indicate that the performance of ZrO2 humidity sensors can be improved effectively by the addition of cationic surfactant.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Chunjie Wang
AU  - Jitao Jie
AU  - Yue Wang
PY  - 2017/04
DA  - 2017/04
TI  - Effects of Surfactants on the Performance of ZrO2 Humidity Sensors
BT  - Proceedings of the 7th International Conference on Education, Management, Information and Mechanical Engineering (EMIM 2017)
PB  - Atlantis Press
SP  - 18
EP  - 23
SN  - 2352-538X
UR  - https://doi.org/10.2991/emim-17.2017.4
DO  - 10.2991/emim-17.2017.4
ID  - Wang2017/04
ER  -