Pyroelectric characteristics of thin PbTiO3 and la-modified PbTiO3 films on platinum films for infrared sensors

Deb, K. K.; Tamagawa, T.; Di, Yunxiang; Gui, Gang; Halpern, B.L.; Schmitt, J.J.

doi:10.1007/s11664-001-0105-0

Cited by 11 publications

(5 citation statements)

References 10 publications

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“…The figure of merit F D of 1.0 mol% La 2 O 3 ‐doped NKBT thick films is much higher than that of undoped thick films, which is not only resulting from the higher pyroelectric coefficient but also the relatively lower dielectric constant and dielectric loss of the doped thick films than that of undoped thick films. Deb et al 38 also demonstrated that the La‐doped PZT films exhibit enhanced pyroelectric coefficient as well as reduced dielectric loss and dielectric constant, which contribute to the enhancement of the figure of merit F D .…”

Section: Resultsmentioning

confidence: 98%

Dielectric, Ferroelectric, Pyroelectric, and Piezoelectric Properties of La‐Modified Lead‐Free Sodium–Potassium Bismuth Titanate Thick Films

Zhang

Jiang

Kajiyoshi

et al. 2010

Journal of the American Ceramic Society

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La2O3‐doped sodium–potassium bismuth titanate (Na0.82K0.18)0.5Bi0.5TiO3 (NKBT) lead‐free thick films have been prepared on Pt‐electroded alumina substrates using a combination of screen printing and subsequent infiltration of the corresponding composite sol. Their densification, microstructure, dielectric, ferroelectric, pyroelectric, and piezoelectric properties were investigated with variation of the La2O3 content. The resulting 40 μm‐thick NKBT films doped with 1.0 mol% La2O3 show minimum leakage current density of 1.56 × 10−9 A/cm2 at an applied field of 100 kV/cm, remanent polarization of 21.6 μC/cm2, and coercive field of 58 kV/cm. The high pyroelectric coefficient of 2.0 × 10−4 C·(m2·°C)−1, the calculated detectivity figure of merit as high as 0.81 × 10−5 Pa−0.5, and the value of remanent d33eff of 108 pm/V at room temperature (20°C) were observed in 1.0 mol% La2O3‐doped NKBT thick films, which can be comparable with that of the commonly used lead‐based materials. The enhancement of the pyroelectric and piezoelectric performances is attributed to the reduction of lattice tetragonality, uniform microstructure, and improved densification in La‐modified NKBT thick films.

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Section: Resultsmentioning

confidence: 98%

Dielectric, Ferroelectric, Pyroelectric, and Piezoelectric Properties of La‐Modified Lead‐Free Sodium–Potassium Bismuth Titanate Thick Films

Zhang

Jiang

Kajiyoshi

et al. 2010

Journal of the American Ceramic Society

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“…Their results show that the (1 0 0) plane has the lowest surface energy, since the (1 0 0) plane has the highest planar atomic density and is electrically neutral. Some (1 0 0) oriented Pb-based ferroelectric thin films, such as (Pb,La)TiO 3 [9] and (Pb,La,Ca)TiO 3 [4,10], have been reported recently. For porous thin films, nucleation can occur at the surface of pores besides both the aforementioned factors.…”

Section: Resultsmentioning

confidence: 99%

Preparation and characteristics of nanoporous PLZT ferroelectric thin films prepared via a one-step CSD process

Cao

Ding

et al. 2005

Journal of Crystal Growth

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“…BaTiO 3 ceramics are well‐known ferroelectric materials with high electrocaloric strength, which greatly promotes the first‐ordered ferroelectric‐paraelectric phase transition . Meanwhile, PbTiO 3 ceramics widely applied in electron devices and industries are deemed as promising ferroelectric materials due to their high relative constant, low dielectric loss, and excellent electromechanical coupling properties . Therefore, the wide applications of XTiO 3 (X = Ca, Sr, Ba, Pb) ceramics have greatly promoted the rapid development of modern industries.…”

Section: Introductionmentioning

confidence: 99%

High‐throughput first‐principle calculations of the structural, mechanical, and electronic properties of cubic XTiO₃ (X = Ca, Sr, Ba, Pb) ceramics under high pressure

Xiao

Fan

Wang

et al. 2020

Int J of Quantum Chemistry

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High‐throughput first‐principle calculations are implemented to study the structural, mechanical, and electronic properties of cubic XTiO3 (X = Ca, Sr, Ba, Pb) ceramics under high pressure. The effects of applied pressure on physical parameters, such as elastic constants, bulk modulus, Young's modulus, shear modulus, ductile‐brittle transition, elastic anisotropy, Poisson's ratio, and band gap, are investigated. Results indicate that high pressure improves the resistance to bulk, elastic, and shear deformation for XTiO3 ceramics. Pugh's ratios B/G reveal that CaTiO3 and PbTiO3 ceramics are ductile, but SrTiO3 and BaTiO3 ceramics are brittle under the ground state. The brittle‐to‐ductile transition pressures are 24.26 GPa for SrTiO3 and 43.23 GPa for BaTiO3. Under high pressure, the strong anisotropy promotes the cross‐slip process of screw dislocations, and then enhances the plasticity of XTiO3 ceramics. Meanwhile, XTiO3 (X = Ca, Sr, Ba) is intrinsically an indirect‐gap ceramic, but PbTiO3 is a direct‐gap ceramic. High pressure increases the band gap of XTiO3 (X = Ca, Sr, Ba) ceramic, but decreases that of PbTiO3 ceramic. This work is helpful for designing and applying XTiO3 ceramics under high pressure.

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Pyroelectric characteristics of thin PbTiO3 and la-modified PbTiO3 films on platinum films for infrared sensors

Cited by 11 publications

References 10 publications

Dielectric, Ferroelectric, Pyroelectric, and Piezoelectric Properties of La‐Modified Lead‐Free Sodium–Potassium Bismuth Titanate Thick Films

Dielectric, Ferroelectric, Pyroelectric, and Piezoelectric Properties of La‐Modified Lead‐Free Sodium–Potassium Bismuth Titanate Thick Films

Preparation and characteristics of nanoporous PLZT ferroelectric thin films prepared via a one-step CSD process

High‐throughput first‐principle calculations of the structural, mechanical, and electronic properties of cubic XTiO₃ (X = Ca, Sr, Ba, Pb) ceramics under high pressure

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Pyroelectric characteristics of thin PbTiO3 and la-modified PbTiO3 films on platinum films for infrared sensors

Cited by 11 publications

References 10 publications

Dielectric, Ferroelectric, Pyroelectric, and Piezoelectric Properties of La‐Modified Lead‐Free Sodium–Potassium Bismuth Titanate Thick Films

Dielectric, Ferroelectric, Pyroelectric, and Piezoelectric Properties of La‐Modified Lead‐Free Sodium–Potassium Bismuth Titanate Thick Films

Preparation and characteristics of nanoporous PLZT ferroelectric thin films prepared via a one-step CSD process

High‐throughput first‐principle calculations of the structural, mechanical, and electronic properties of cubic XTiO3 (X = Ca, Sr, Ba, Pb) ceramics under high pressure

Contact Info

Product

Resources

About

High‐throughput first‐principle calculations of the structural, mechanical, and electronic properties of cubic XTiO₃ (X = Ca, Sr, Ba, Pb) ceramics under high pressure