Annealing on the Electrical and Dielectric Properties of Barium Strontium Titanate

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The electrical and dielectric properties of Ba0.3Sr0.7TiO3 (BST), as a function of annealed temperature and oxygen partial pressure (P(O2)) , were studied in this paper. The resistivity data were fit to a p type model involving only doubly ionized oxygen vacancies, holes, and accidental acceptor impurities, and it decreased as P(O2) and temperature increased. The breakdown strength exhibited the same trend with resistivity. The breakdown strength exhibited the same trend with resistivity. The maximum dielectric constant of BST was observed under the lowest P(O2) at the temperature of 900°C. BST annealed under P(O2) of 0.1 atm at the temperature of 800°C obtained the highest volume energy storage density.

Info:

Periodical:

Advanced Materials Research (Volumes 295-297)

Edited by:

Pengcheng Wang, Liqun Ai, Yungang Li, Xiaoming Sang and Jinglong Bu

Pages:

1059-1064

DOI:

10.4028/www.scientific.net/AMR.295-297.1059

Citation:

G. X. Dong and W. Liu, "Annealing on the Electrical and Dielectric Properties of Barium Strontium Titanate", Advanced Materials Research, Vols. 295-297, pp. 1059-1064, 2011

Online since:

July 2011

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$35.00

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