Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/20081
Title: The synthesis of lead-free ferroelectric Bi0.5Na0.5TiO3-Bi0.5K0.5TiO3 thin films by sol-gel method
Authors: Yu, T
Kwok, KW 
Chan, HLW 
Keywords: Ferroelectric
Lead-free
MPB
Sol-gel process
Issue Date: 2007
Publisher: North-Holland
Source: Materials letters, 2007, v. 61, no. 10, p. 2117-2120 How to cite?
Journal: Materials letters 
Abstract: (1 - x)Bi0.5Na0.5TiO3-xBi0.5K0.5TiO3 [BNT-BKT-100x] thin films have been successfully deposited on Pt/Ti/SiO2/Si substrates by a sol-gel process together with rapid thermal annealing. A morphotropic phase boundary (MPB) between Bi0.5Na0.5TiO3 and Bi0.5K0.5TiO3 was determined around x ∼ 0.15. Near the MPB, the film exhibits the largest grain size, the highest ε value (360) and the largest Pr value (13.8 μC/cm2). The BNT-BKT thin film system is expected to be a new and promising candidate for lead-free piezoelectric applications.
URI: http://hdl.handle.net/10397/20081
ISSN: 0167-577X
EISSN: 1873-4979
DOI: 10.1016/j.matlet.2006.08.023
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