Dielectric characteristics of nanocrystailine Ag-Ba0.5Sr 0.5TiO3 composite thin films

K. P. Jayadevan*, C. Y. Liu, Tseung-Yuen Tseng

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


The effect of Ag addition on the capacitance and loss characteristics of sol-gel derived Ba0.5Sr0.5TiO3 (BST) thin films was discussed. It was observed that the voltage-dependent capacitance (C-V) and dielectric loss of the films decrease with increasing Ag up to 2 mol % due to a series configuration involving low dielectric interface layers and dense microstructures. The evidence for asymmetric distribution of charge carriers in the Ag-BST film was suggested to be derived from C-V measurements. The dielectric tunability of BST film with 1 mol % Ag was found to be comparable to that of pure BST.

Original languageEnglish
Pages (from-to)1211-1213
Number of pages3
JournalApplied Physics Letters
Issue number7
StatePublished - 16 Aug 2004

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