Results 131 to 140 of about 612 (196)
Quantifying the pyroelectric and photovoltaic coupling series of ferroelectric films. [PDF]
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Advanced Materials, 2023
AbstractThe first observation of heat‐induced electrical potential generation on a virus and its detection through pyroelectricity are presented. Specifically, the authors investigate the pyroelectric properties of the M13 phage, which possesses inherent dipole structures derived from the noncentrosymmetric arrangement of the major coat protein (pVIII)
Han Kim, Seung-Wuk Lee
exaly +3 more sources
AbstractThe first observation of heat‐induced electrical potential generation on a virus and its detection through pyroelectricity are presented. Specifically, the authors investigate the pyroelectric properties of the M13 phage, which possesses inherent dipole structures derived from the noncentrosymmetric arrangement of the major coat protein (pVIII)
Han Kim, Seung-Wuk Lee
exaly +3 more sources
Giant pyroelectricity in nanomembranes
Nature, 2022Pyroelectricity describes the generation of electricity by temporal temperature change in polar materials1-3. When free-standing pyroelectric materials approach the 2D crystalline limit, how pyroelectricity behaves remained largely unknown. Here, using three model pyroelectric materials whose bonding characters along the out-of-plane direction vary ...
Jie Jiang +24 more
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Physica Status Solidi (a), 1978
Pyroelectricity is observed and measured in poly-2,4-hexadiyne-1,6-diol bis(p-toluene sulphonate), (abbreviated PTS), between 76 and 300 K. PTS is claimed to be monoclinic and to belong to the space group P21/c, i.e. it should have a center of symmetry, so that the observation of pyroelectricity is in conflict with the structure determination.
H. Kiess, R. Clarke
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Pyroelectricity is observed and measured in poly-2,4-hexadiyne-1,6-diol bis(p-toluene sulphonate), (abbreviated PTS), between 76 and 300 K. PTS is claimed to be monoclinic and to belong to the space group P21/c, i.e. it should have a center of symmetry, so that the observation of pyroelectricity is in conflict with the structure determination.
H. Kiess, R. Clarke
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Equivalent pyroelectric coefficient of a pyroelectric bimorph structure
Journal of Applied Physics, 2000A 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.
L. Pintilie, I. Pintilie, I. Matei
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Pyroelectric and Electrocaloric Materials
J. Mater. Chem. C, 2013Both the pyroelectric and electrocaloric effects originate from the cross-coupling between polarization and temperature in insulating dielectrics. Although both effects have been studied for many decades for various applications and large pyroelectric effect has been observed in many polar-dielectrics, it is only very recently that a large ...
Xinyu Li +5 more
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Nature Materials, 2018
Using a thin-film geometry and electric-field-driven enhancement of pyroelectric response, a relaxor ferroelectric is shown to display superior power densities for thermal harvesting.
Joseph P, Feser, Jayakanth, Ravichandran
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Using a thin-film geometry and electric-field-driven enhancement of pyroelectric response, a relaxor ferroelectric is shown to display superior power densities for thermal harvesting.
Joseph P, Feser, Jayakanth, Ravichandran
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Systematic Study of Pyroelectricity. Ferroelectricity and Pyroelectricity in the Perovskites
1975Abstract : The relation between ferroelectricity and pyroelectricity in the perovskites is explored using Devonshire's phenomenological theory of ferroelectricity and a new microscopic theory obtained by generalizing the conventional molecular field theory.
P. M. Raccah, M. I. Bell
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Piezo- and Pyroelectric Properties
1980Some polymers can be made both piezo- and pyroelectric by suitable application of a large electric field. This effect is true piezo- and pyroelectricity rather than electrostriction, conduction, electromechanical effects, or the motion of conductors in the field of space charges. Two distinct types of polymers can be piezoelectric.
M. G. Broadhurst, G. T. Davis
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The Journal of Physical Chemistry B, 2008
Water ice usually is thought to have zero pyroelectricity by symmetry. However, biasing it with ions breaks the symmetry because of the induced partial dipole alignment. This unmasks a large pyroelectricity. Ions were soft-landed upon 1 mum films of water ice at temperatures greater than 160 K. When cooled below 140-150 K, the dipole alignment locks in.
Hanfu, Wang +5 more
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Water ice usually is thought to have zero pyroelectricity by symmetry. However, biasing it with ions breaks the symmetry because of the induced partial dipole alignment. This unmasks a large pyroelectricity. Ions were soft-landed upon 1 mum films of water ice at temperatures greater than 160 K. When cooled below 140-150 K, the dipole alignment locks in.
Hanfu, Wang +5 more
openaire +2 more sources