High Performance Humidity Sensor Based on ZnO Nanoparticles Synthesized by Co-Precipitation Method

T. Santhaveesuk; Kwunta Siwawongkasem; Siriwimon Pommek; Supab Choopun

doi:10.4028/www.scientific.net/AMM.848.99

Paper Titles

Study of Optical and Electrical Properties of Tin-Doped Magnesium Phthalocyanine Thin Films Grown by Thermal Co-Evaporation
p.80

Antioxidant and Nutrition Facts of Pittosporoposis kerrii Craib
p.85

State Diagrams of Two Thai Rice Varieties Differing in Amylose Contents
p.89

Study on Optical and Electrical Properties of Bismuth-Doped Nickel-Phthalocyanine Thin Films
p.95

High Performance Humidity Sensor Based on ZnO Nanoparticles Synthesized by Co-Precipitation Method
p.99

Effect of Substrate Temperature of on Properties of Cobalt Oxide Thin Films Prepared by Electrostatic Spray Deposition Technique
p.103

Utilization from Okara to Replace Wheat Flour in Ice-Cream Cone
p.107

The Prediction of 4G Traffic for Customer’s Demand of Lao Telecommunications Company Using Statistical Method
p.111

Lifetime Simulation of Rechargeable Batteries for Solar Powered Fishing Lights
p.115

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 848High Performance Humidity Sensor Based on ZnO...

High Performance Humidity Sensor Based on ZnO Nanoparticles Synthesized by Co-Precipitation Method

Abstract:

ZnO nanoparticles were successfully synthesized by a low cost co-precipitation method using zinc nitrate and sodium hydroxide as the raw materials. It was observed that the synthesized temperatures greatly effect on the size of ZnO nanoparticles. The lower synthesized temperatures resulted in the smaller nanoparticles. By adjusting the mole ratio of sodium hydroxide, the size of ZnO nanoparticles was also changed. The smallest ZnO particles was 47 nm obtained with 0.7 mole of sodium hydroxide. The smallest ZnO nanoparticles from each synthesized temperatures were fabricated as humidity sensor, showing an impressive performance under different relative humidity (17-94% RH). It should be noticed that the ZnO nanoparticles humidity sensor synthesized at 75 °C exhibited high response for 2 times higher than that of synthesized at 95 °C. This is attributed to the higher surface area of ZnO nanoparticles for absorbed water molecule.

You might also be interested in these eBooks

Technology and Innovation for Sustainable Development

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volume 848)

Pages:

99-102

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.848.99

Citation:

Cite this paper

Online since:

July 2016

Authors:

T. Santhaveesuk*, Kwunta Siwawongkasem, Siriwimon Pommek, Supab Choopun

Keywords:

Co-Precipitation, Humidity Sensor, Nanoparticles, Zinc Oxide

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] H. Farahani, R. Wagiran, M. Hamidon, Humidity sensors principle, mechanism, and fabrication technologies: A comprehensive review, Sensor. 14 (2014) 7881-7939.

DOI: 10.3390/s140507881

Google Scholar

[2] A. Tripathy, S. Pramanik, J. Cho, J. Santhosh, N. Abu Osman, Role of morphological structure, doping, and coating of different materials in the sensing characteristics of humidity sensors, Sensor. 14 (2014) 16343-16422.

DOI: 10.3390/s140916343

Google Scholar

[3] T. Santhaveesuk, S. Choopun, Ethanol sensing characteristics of Sn-doped ZnO tetrapods sensor, Adv. Mater. Res. 770 (2013) 185-188.

DOI: 10.4028/www.scientific.net/amr.770.185

Google Scholar

[4] S. Choopun, A. Tubtimtae, T. Santhaveesuk, S. Nilphai, E. Wongrat, N. Hongsith, Zinc oxide nanostructures for applications as ethanol sensors and dye-sensitized solar cells, Appl. Surf. Sci. 256 (2009) 998-1002.

DOI: 10.1016/j.apsusc.2009.05.139

Google Scholar

[5] P.K. Kannan, R. Saraswathi, J.B.B. Rayappan, A highly sensitive humidity sensor based on DC reactive magnetron sputtered zinc oxide thin film, Sensor Actuat. A-Phys. 164 (2010) 8-14.

DOI: 10.1016/j.sna.2010.09.006

Google Scholar

[6] T. Santhaveesuk, Y. Keawtoakrue, K. Siwawongkasem, S. Choopun, Size and shape tailoring of ZnO nanoparticles, Appl. Mech. Mater. 675-676 (2016) 61-64.

DOI: 10.4028/www.scientific.net/kem.675-676.61

Google Scholar

[7] A. Rayerfrancis, P. Balaji Bhargav, N. Ahmed, B. Chandra, S. Dhara, Effect of pH on the morphology of ZnO nanostructures and its influence on structural and optical properties, Physica B 457 (2015) 96-102.

DOI: 10.1016/j.physb.2014.09.044

Google Scholar

[8] W. -P. Tai, J. -H. Oh, Humidity sensing behaviors of nanocrystalline Al-doped ZnO thin films prepared by sol–gel process, J. Mater. Sci. -Mater. El. 13 (2002) 391-394.

Google Scholar