Energy harvesting device using pyroelectric material
AssigneeSamsung Electronics Co., Ltd.
InventorJi-hyuk Lim
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Abstract
Provided is an energy harvesting device using pyroelectric materials. The energy harvesting device includes a first heat source; a second heat source having a temperature higher than a temperature of the first heat source; and a cantilever which is interposed between the first heat source and the second heat source, the cantilever including a first film formed of a pyroelectric material and a second film, where the first film is disposed on the second film and a thermal expansion coefficient of the second film is different from that of the pyroelectric material of the first film. Electric energy is generated by periodically changing a temperature within the first film.
Claims9
An energy harvesting device comprising:
- a first heat source;
- a second heat source having a temperature higher than a temperature of the first heat source;
- and
- a cantilever which is interposed between the first heat source and the second heat source, the cantilever comprising a first film formed of a pyroelectric material and a second film, wherein the first film is disposed on the second film and a thermal expansion coefficient of the second film is different from a thermal expansion coefficient of the pyroelectric material of the first film;
- wherein the cantilever is disposed such that the second film is closer to the second heat source than the first film, and
- at least a portion of the second film is fixed to the second heat source to support an end of the cantilever.
Dependencies are inferred from the claim text.