a

1
a)
b)
b)
The influence of the operating temperature and
film thickness on the pyroelectric properties of
(001) Ba0.6Sr0.4TiO3 (BST 60/40) epitaxial films
on (001) LaAlO3, MgO and Si substrates are
investigated theoretically via a thermodynamic
model. The results are presented using contour
maps that can be used to identify design
windows for film thickness and operating
temperature for optimum pyroelectric response.
The pyroelectric coefficient (in ?Ccm-2K-1)
as a function of film thickness and operating
temperature for (001) BST 60/40 film on a) (001)
LaAlO3, b) MgO, c) Si at deposition temperature
800o C, and d) at 500o C is shown (See the next
slide).
c)
d)
2
c)
d)
A. Sharma, Z.G. Ban, and S.P. Alpay Department
of Metallurgy and Materials Engineering and
Institute of Materials Science, University of
Connecticut, Storrs, CT 06269   J. V.
Mantese Delphi Research Laboratories, Shelby
Township, Michigan 48315