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Effect of PbO Seeding Layers on the Structure and Properties of the Sol–Gel‐Derived BiScO 3 –PbTiO 3 Thin Films
Author(s) -
Zhong Caifu,
Wang Xiaohui,
Wu Yunyi,
Li Longtu
Publication year - 2010
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2010.04180.x
Subject(s) - materials science , dielectric , thin film , seeding , piezoelectricity , dielectric loss , sol gel , piezoelectric coefficient , composite material , mineralogy , analytical chemistry (journal) , nanotechnology , optoelectronics , chemistry , chromatography , aerospace engineering , engineering
Structure and dielectric/piezoelectric properties of the sol–gel‐derived 0.36BiScO 3 –0.64PbTiO 3 (BSPT) thin films deposited on Pt(111)/Ti/SiO 2 /Si(100) substrates with PbO seeding layers are investigated. Highly (100)‐oriented BSPT thin films with thickness ranging from 250 to 950 nm were synthesized by alternatively coating PbO seeding layers and BSPT layers. The as‐deposited BSPT film with thickness of 950 nm showed high dielectric constant of 1850 and effective piezoelectric coefficient d 33 * of approximate 150 pm/V, the latter was comparable with that of the (001) epitaxial BSPT films grown on Nb–SrTiO 3 single crystal substrates. The influence of PbO seeds on the structure and electric properties of the films is discussed as well.