Calcium lead titanate thin films for pyroelectric detection

2017 ◽  
Author(s):  
Philip Chrostoski ◽  
Nicholas Calvano ◽  
Bakare O'Neil ◽  
Andrew Voshell ◽  
Keesean Braithwaite ◽  
...  
Keyword(s):  
Thin Films ◽  
Lead Titanate ◽  
Calcium Lead

scholarly journals Electro-Optical Properties of Sputtered Calcium Lead Titanate Thin Films for Pyroelectric Detection

Micromachines ◽  
2020 ◽  
Vol 11 (12) ◽  
pp. 1073
Author(s):  
Elham Mafi ◽  
Nicholas Calvano ◽  
Jessica Patel ◽  
Md. Sherajul Islam ◽  
Md. Sakib Hasan Khan ◽  
...  
Keyword(s):  
Thin Films ◽  
Lead Titanate ◽  
Density Functional ◽  
Pyroelectric Coefficient ◽  
X Ray Diffraction ◽  
Radio Frequency Sputtering ◽  
Pyroelectric Current ◽  
Pyroelectric Detectors ◽  
Higher Temperature ◽  
Calcium Lead

We report the deposition and characterization of calcium lead titanate (PCT) thin films for pyroelectric detectors. PCT films of thicknesses ranging from ~250 to 400 nm were deposited on both silicon and Si/SiN/Ti/Au substrates at 13 mTorr pressure by 200W radio frequency sputtering in an Ar + O2 environment. Substrates were kept at variable temperatures during the deposition. The PCT films were annealed at various temperatures in an O2 environment for 15 min. X-ray diffraction results confirm the polycrystalline nature of these films. Energy dispersive spectroscopy function of scanning electron microscope showed that the films are stoichiometric (Ca0.43Pb0.57) TiO3 (Ca/Ti = 0.5, Pb/Ti = 0.66). Temperature dependence of capacitance, pyroelectric current, and pyroelectric coefficient was investigated for different PCT films. Our results show that films deposited at 550 °C and 600 °C demonstrate better quality and larger values of the pyroelectric coefficient. On the other hand, the capacitance fabricated on the PCT films at 550 °C showed the highest value of pyroelectric current and pyroelectric coefficient which were 14 pA and at 30 °C was ~2 µC/m2K respectively at a higher temperature. In addition, we used density functional theory to determine the atomic and band structure, real and imaginary parts of dielectric constant and refractive index, and absorption and reflection constants with energy.

Optical waveguiding properties of lead titanate thin films grown on quartz by pulsed-laser deposition

2003 ◽  
Vol 24 (3) ◽  
pp. 465-470 ◽  
Author(s):  
A Essahlaoui ◽  
A Roemer ◽  
A Boudrioua ◽  
E Millon ◽  
J.C Loulergue
Keyword(s):  
Thin Films ◽  
Pulsed Laser Deposition ◽  
Lead Titanate ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Optical Waveguiding

Effect of Excess Lead on Dielectric and Ferroelectric Properties of Alkoxide-Derived Lead Titanate Thin Films

2002 ◽  
Vol 271 (1) ◽  
pp. 309-314
Author(s):  
T. Ohno ◽  
H. Suzuki ◽  
J. Takahashi ◽  
S. Shimada ◽  
T. Ota ◽  
...  
Keyword(s):  
Thin Films ◽  
Lead Titanate ◽  
Ferroelectric Properties ◽  
Excess Lead

Characteristics of sol-gel derived PZT thin films with lead oxide cover layers and lead titanate interlayers

1996 ◽  
Vol 31 (17) ◽  
pp. 4559-4568 ◽  
Author(s):  
C. Lee ◽  
S. Kawano ◽  
T. Itoh ◽  
T. Suga
Keyword(s):  
Thin Films ◽  
Lead Titanate ◽  
Lead Oxide ◽  
Sol Gel ◽  
Pzt Thin Films
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