Results 21 to 30 of about 1,363 (225)
Pyroelectricity in globular protein lysozyme films
, 2018 Pyroelectricity is the ability of certain non-centrosymmetric materials to generate an electric chargein response to a change in temperature and finds use in a range of applications from burglar alarms to thermal imaging.
SYED ANSAR TOFAIL (12350653) +5 more
core +2 more sources
Multi-Frequency Band Pyroelectric Sensors
Sensors, 2014 A methodology is proposed for designing a multi-frequency band pyroelectric sensor which can detect subjects with various frequencies or velocities. A structure with dual pyroelectric layers, consisting of a thinner sputtered ZnO layer and a thicker ...
Chun-Ching Hsiao, Sheng-Yi Liu
doaj +1 more source
Crystals, 2021 A temperature-modulated pyroelectricity measurement system for a small single crystal is developed and applied to standard sample measurements performed on a thin single crystal of lithium niobate. The modulation measurement is based on the AC technique,
Kaoru Yamamoto +3 more
doaj +1 more source
Electroactive properties of flexible piezoelectric composites
Materials Research, 2001 A flexible piezoelectric composite with 0-3 connectivity, made from Lead Zirconate Titanate (PZT) powder and vegetable-based polyurethane (PU), was doped with small amount of semiconductor powder.
Walter Katsumi Sakamoto +2 more
doaj +1 more source
Ferroelectricity in biological building blocks: Slipping on a banana peel?
Journal of Advanced Dielectrics, 2023 Ferroelectricity in biological system has been anticipated both theoretically and experimentally over the past few decades. Claims of ferroelectricity in biological systems have given rise to confusion and methodological controversy.
Syed A. M. Tofail
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Pyroelectric property of SrTiO3/Si ferroelectric-semiconductor heterojunctions near room temperature [PDF]
Journal of Advanced Dielectrics, 2015 A nonlinear thermodynamic formalism is developed to calculate the pyroelectric property of epitaxial single domain SrTiO3∕Si heterojunctions by taking into account the thermal expansion misfit strain at different temperatures.
Gang Bai +6 more
doaj +1 more source
Pyroelectricity and field-induced spin-flop in (4-(Aminomethyl)pyridinium)2 MnCl4 · 2H2O [PDF]
Royal Society Open Science, 2020 Large single crystals of (4-(Aminomethyl)pyridinium)2 MnCl4 · 2H2O (1) were grown by slow evaporation of solution. The crystal structure was solved to be Pī, which belongs to the central symmetric space group. But small pyroelectric current was detected,
Kaige Gao +4 more
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Dielectric to pyroelectric phase transition induced by defect migration
New Journal of Physics, 2015 Subjecting strontium titanate single crystals to an electric field in the order of 10 ^6 V m ^−1 is accompanied by a distortion of the cubic crystal structure, so that inversion symmetry vanishes and a polar phase is established.
Juliane Hanzig +8 more
doaj +1 more source
Improvement of Pyroelectric Cells for Thermal Energy Harvesting
Sensors, 2012 This study proposes trenching piezoelectric (PZT) material in a thicker PZT pyroelectric cell to improve the temperature variation rate to enhance the efficiency of thermal energy-harvesting conversion by pyroelectricity.
Jing-Chih Ciou +2 more
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Improved Response of ZnO Films for Pyroelectric Devices
Sensors, 2012 Increasing the temperature variation rate is a useful method for enhancing the response of pyroelectric devices. A three-dimensional ZnO film was fabricated by the aerosol deposition (AD) rapid process using the shadow mask method, which induces lateral ...
Shih-Yuan Yu, Chun-Ching Hsiao
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