Saeed, A. and Ruthramurthy, B. and Yong, W.H. and Hoong, O.B. and Ban, T.K. and Kwang, Y.H. (2015) Structural and dielectric properties of iron doped barium strontium titanate for storage applications. Journal of Materials Science: Materials in Electronics, 26 (12, SI). pp. 9859-9864. ISSN 0957-4522, DOI https://doi.org/10.1007/s10854-015-3661-4.
Full text not available from this repository.Abstract
Barium strontium titanate (BST) and iron doped barium strontium titanate (BSTF) ceramics with general formula (Ba0.5Sr0.5Ti1-yFeyO3) and different iron (Fe) contents were prepared by slow rate injection sol-gel technique. The phase analysis, morphology and dielectric properties of BSTFs were investigated. The phase analysis was carried out using XRD which revealed the crystallization of BSTF in perovskite structure with single phase. The Fe doped BST peaks shifted toward higher angles and the calculated crystallite size was 19 nm on average. The BSTF morphology was studied using TEM which showed that the particle size was affected by Fe content. The average particle size was found to be 37 nm for (Ba0.5Sr0.5Ti1-yFeyO3) with Fe concentration of (y = 0.01, 0.05 and 0.1) calcined at (600, 800 and 1000 A degrees C). The dielectric measurements were carried out using impedance analyzer at room temperature as a function of frequency in the range of 10 Hz to 1 MHz. The dielectric constant and dielectric loss of the 1 mol% Fe-doped Ba0.5Sr0.5TiO3 at 1 kHz were 1453.69 and 0.0063, respectively. The BSTF ceramics with high dielectric constant and low dielectric loss were obtained for the application DRAM cell capacitor.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Solid-solutions; Ceramics; Transitions; Precursor; Films |
| Subjects: | Q Science > QC Physics T Technology > TA Engineering (General). Civil engineering (General) |
| Depositing User: | Mrs. Siti Mawarni Salim |
| Date Deposited: | 23 Sep 2016 01:39 |
| Last Modified: | 16 Apr 2019 02:54 |
| URI: | http://eprints.um.edu.my/id/eprint/16525 |
Actions (login required)
 |
View Item |
