In 1824, Sir David Brewster demonstrated piezoelectric effects using Rochelle salts, which led to him naming the effect pyroelectricity.
12.
This and other lattice symmetry properties result in piezoelectricity of the hexagonal and zincblende ZnO, and pyroelectricity of hexagonal ZnO.
13.
Pyroelectricity requires time-varying inputs and suffers from small power outputs in energy harvesting applications due to its low operating frequencies.
14.
The combined properties of memory, piezoelectricity, and pyroelectricity make ferroelectric capacitors very useful, e . g . for sensor applications.
15.
Due to this, wurtzite crystals can ( and generally do ) have properties such as piezoelectricity and pyroelectricity, which centrosymmetric crystals lack.
16.
Pierre Curie and his brother, Jacques Curie, studied pyroelectricity in the 1880s, leading to their discovery of some of the mechanisms behind piezoelectricity.
17.
In turn, pyroelectricity is seen most strongly in materials which also display the ferroelectric effect, in which a stable electric dipole can be oriented or reversed by applying an electrostatic field.
18.
Pyroelectricity should not be confused with thermoelectricity : In a typical demonstration of pyroelectricity, the whole crystal is changed from one temperature to another, and the result is a temporary voltage across the crystal.
19.
Pyroelectricity should not be confused with thermoelectricity : In a typical demonstration of pyroelectricity, the whole crystal is changed from one temperature to another, and the result is a temporary voltage across the crystal.
