A detailed formula for the equivalent pyroelectric coefficient of a bimorph structure acting as a pyroelectric detector was deduced. It is shown that electric fields occur in the structure when it is subjected to a temperature variation, due to the unequal charges generated by the two components. The field dependence of the ferroelectric polarization has to be considered in this case and the derivative appears explicitly in the deduced formula. The effect is that the equivalent pyroelectric coefficient has different values for heating and cooling. This could lead to a redressing effect on the pyroelectric signal if the temperature difference varies periodically. The equivalent pyroelectric coefficient is, also, thickness dependent. This fact offers the possibility of designing structures with high values of pyroelectric coefficient compared with the values of the component phases.
Skip Nav Destination
,
,
Article navigation
15 December 2000
Research Article|
December 15 2000
Equivalent pyroelectric coefficient of a pyroelectric bimorph structure Available to Purchase
L. Pintilie;
L. Pintilie
National Institute of Materials Physics, Atomistilor 105 bis, Bucharest-Magurele, P.O. Box MG-7, RO-76900, Romania
Search for other works by this author on:
I. Pintilie;
I. Pintilie
National Institute of Materials Physics, Atomistilor 105 bis, Bucharest-Magurele, P.O. Box MG-7, RO-76900, Romania
Search for other works by this author on:
I. Matei
I. Matei
National Institute of Materials Physics, Atomistilor 105 bis, Bucharest-Magurele, P.O. Box MG-7, RO-76900, Romania
Search for other works by this author on:
L. Pintilie
I. Pintilie
I. Matei
National Institute of Materials Physics, Atomistilor 105 bis, Bucharest-Magurele, P.O. Box MG-7, RO-76900, Romania
J. Appl. Phys. 88, 7264–7271 (2000)
Article history
Received:
February 22 2000
Accepted:
September 21 2000
Citation
L. Pintilie, I. Pintilie, I. Matei; Equivalent pyroelectric coefficient of a pyroelectric bimorph structure. J. Appl. Phys. 15 December 2000; 88 (12): 7264–7271. https://doi.org/10.1063/1.1327284
Download citation file:
Pay-Per-View Access
$40.00
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Citing articles via
A step-by-step guide to perform x-ray photoelectron spectroscopy
Grzegorz Greczynski, Lars Hultman
Piezoelectric thin films and their applications in MEMS: A review
Jinpeng Liu, Hua Tan, et al.
Tutorial: Simulating modern magnetic material systems in mumax3
Jonas J. Joos, Pedram Bassirian, et al.
Related Content
Optical power monitor using a thin‐film pyroelectric bimorph
Rev. Sci. Instrum. (March 1990)
Multifunctional transducer using poly (vinylidene fluoride) active layerand highly conducting poly (3,4-ethylenedioxythiophene) electrode: Actuator and generator
Appl. Phys. Lett. (September 2004)
A PVDF long time‐constant force sensor
J. Acoust. Soc. Am. (May 2001)
Thermal noise cancellation in symmetric magnetoelectric bimorph laminates
Appl. Phys. Lett. (August 2008)
Resonance magnetoelectric effects in a piezoelectric bimorph
J. Appl. Phys. (September 2011)