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Advances in Materials Science and Engineering - Volume 2014 2014, Article ID 685715, 5 pages -

Research Article

Physics Department, Hue University’s College of Education, Hue, Vietnam

Faculty of Physics, Hanoi University of Science, VNU, Hanoi, Vietnam

Institute of Material Science, Institute of Technology and Science, Hanoi, Vietnam

Received 21 March 2014; Accepted 23 June 2014; Published 18 August 2014

Academic Editor: Markku Leskela

Copyright © 2014 Nguyen Thi Thuy et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The nanocrystalline powders with orthorhombic perovskite phase were prepared by sol-gel method. The average crystallite sizes of powders are about 20 nm. The resistance and gas-sensing properties of the based sensors were investigated in the temperature range from 160 to 300°C. The results demonstrated that the resistance and response of the perovskite thick films changed with the increase of Nd content.

Autor: Nguyen Thi Thuy, Dang Le Minh, Ho Truong Giang, and Nguyen Ngoc Toan



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