Enhancement of pyroelectric properties of composite thick films using Mn-doped PZT

Wu, Chuangui; Cai, Guangqiang; Luo, Wenbo; Peng, Qiangxiang; Sun, Xiangyu; Zhang, Wanli

doi:10.1016/j.sna.2013.04.025

Cited by 16 publications

(8 citation statements)

References 27 publications

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“…Using the equation above, the pyroelectric figure of merit for the PZT material was calculated; found that it varied from 5.36 Â 10 À6 to 2.00 Â 10 À5 C/m 2 K before poling. After poling, the pyroelectric figure of merit was calculated again and it was found to be varied from 5.54 Â 10 À5 to 2.07 Â 10 À4 C/m 2 K. The pyroelectric figure of merit for the PCT material was found to be varied from 1.89 Â 10 À5 to 4.62 Â 10 À5 C/m 2 K before poling and 1.54 Â 10 À4 to 3.87 Â 10 À4 C/m 2 K. In Table 2, the pyroelectric figure of merit of PZT and PCT materials investigated in this work has been compared with other pyroelectric materials that were found (calculated) in literature [21][22][23][24].…”

Section: Pyroelectric Figure Of Meritmentioning

confidence: 88%

Modified lead titanate thin films for pyroelectric infrared detectors on gold electrodes

Ahmed

Butler

2015

Infrared Physics & Technology

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Section: Pyroelectric Figure Of Meritmentioning

confidence: 88%

Modified lead titanate thin films for pyroelectric infrared detectors on gold electrodes

Ahmed

Butler

2015

Infrared Physics & Technology

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“…

F_{normalE} = \frac{p^{2}}{ε_{33}^{T}}

where p is the pyroelectric coefficient and

ε_{33}^{T}

is the permittivity of the pyroelectric material at constant stress. Efforts to improve the performance of ferroelectric ceramics for a variety of applications often focus on dense materials via chemical modification (doping, substitution) or the employment of the single crystals . Due to the complexity of developing new formulations and the high cost, low Curie temperature, and poor mechanical properties of single crystals, the applications of pyroelectric harvesting materials are limited.…”

Section: Introductionmentioning

confidence: 99%

Porous PZT Ceramics with Aligned Pore Channels for Energy Harvesting Applications

et al. 2015

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In this study, aligned porous lead zirconate titanate (PZT) ceramics with high pyroelectric figures-of-merit were successfully manufactured by freeze casting using water-based suspensions. The introduction of aligned pores was demonstrated to have a strong influence on the resultant porous ceramics, in terms of mechanical, dielectric, and pyroelectric properties. As the level of porosity was increased, the relative permittivity decreased, whereas the Curie temperature and dielectric loss increased. The aligned porous structure exhibited improvement in the compressive strength ranging from 19 to 35 MPa, leading to easier handling, better processability and wider applications for such type of porous material. Both types of pyroelectric harvesting figures-of-merit (F E and F 0 E ) of the PZT ceramics with a porosity level of 25-45 vol% increased in all porous ceramics, for example, from 11.41 to 12.43 pJ/m 3 / K 2 and 1.94 to 6.57 pm 3 /J, respectively, at 25°C, which were shown to be higher than the dense PZT counterpart.

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“…Composites with a polymer matrix comprising crystallite grains of ferroelectric ceramics are quite promising materials possessed good mechanical elasticity, low acoustical resistance, dielectric permittivity, and high pyroelectric and piezoelectric coefficients [3,4]. Furthermore, their properties can be varied by changing the kind of polymers and ferroelectrics, allowing a wide range of applications as functional materials for piezo-and pyroelectric sensors [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Dynamic pyroelectric response of composite based on ferroelectric copolymer of poly(vinylidene fluoride-trifluoroethylene) and ferroelectric ceramics of barium lead zirconate titanate

et al. 2015

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In this work, pyroelectric properties of composite films on the basis of poly(vinylidene fluoride-trifluoroethylene) copolymer with a various level of ferroelectric ceramics inclusions of barium lead zirconate titanate solid solution were investigated by the dynamic method. The composite films were prepared by the solvent cast method. The unusual spike-like dynamic response with a quasi-stationary component was observed. It is supposed that composite films may be effectively used for pyroelectric applications.

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Enhancement of pyroelectric properties of composite thick films using Mn-doped PZT

Cited by 16 publications

References 27 publications

Modified lead titanate thin films for pyroelectric infrared detectors on gold electrodes

Modified lead titanate thin films for pyroelectric infrared detectors on gold electrodes

Porous PZT Ceramics with Aligned Pore Channels for Energy Harvesting Applications

Dynamic pyroelectric response of composite based on ferroelectric copolymer of poly(vinylidene fluoride-trifluoroethylene) and ferroelectric ceramics of barium lead zirconate titanate

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