Enhanced dielectric and piezoelectric properties in lead-free Bi0.5Na0.5TiO3–BaTiO3–SrTiO3 thin films with seed layer

Wei Li,Peng Li,Huarong Zeng,Jigong Hao,Jiwei Zhai

doi:10.1016/j.ceramint.2015.03.178

Enhanced dielectric and piezoelectric properties in lead-free Bi0.5Na0.5TiO3–BaTiO3–SrTiO3 thin films with seed layer

Wei Li, Peng Li + Show 3 more

https://doi.org/10.1016/j.ceramint.2015.03.178

Copy DOI

Journal: Ceramurgia International	Publication Date: Apr 1, 2015
Citations: 18

Affiliation: Liaocheng University, Tongji University, Shanghai Institute of Ceramics, Chinese Academy of Sciences

#Enhancement Of Electrical Properties #SrTiO3 Thin Films + Show 8 more

Abstract
Full-Text PDF
Similar Papers

Abstract

0.755(Bi0.5Na0.5)TiO3–0.065BaTiO3–0.18SrTiO3 (BNT–BT–ST) thin films were deposited on the Pt(111)/Ti/SiO2/Si substrates with seed layer. Extremely enhanced electrical properties exhibited in the BNT–BT–ST film with seed layer, such as large dielectric constant (630) and piezoelectric coefficient d33 (140pm/V) and low dielectric loss (0.032). The enhancement of electrical properties can be attributed to the seed layer, which offers nucleation site to reduce crystallization activation energy and facilitates polarization response. The seed layer also acts as a capacitive interface layer, which reduces the vacancy-type defects effectively.

Full Text