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US 10,461,666 B2Granted
Energy harvester for electrostatic energy
AssigneeSamsung Electronics Co., Ltd.
InventorsSangwoo Kim, Keun Young Lee, Seongsu Kim, Juhyuck Lee
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Abstract
Provided is an electrostatic energy harvester Including a lower electrode; a ferroelectric material layer which is disposed on the lower electrode and formed of a poled ferroelectric material; a friction-charged body which is adapted to be repeatedly contacted with and separated from the ferroelectric material layer and has an electric susceptibility different from an electric susceptibility of the ferroelectric material layer; and an upper electrode provided on the friction-charged body.
Claims8
An energy harvester comprising:
- a lower electrode;
- a ferroelectric material layer which is disposed on the lower electrode and formed of a negatively poled ferroelectric material or a positively poled ferroelectric material, the ferroelectric material layer having a first electric susceptibility;
- a friction-charged body which is adapted to be repeatedly contacted with and separated from the ferroelectric material layer and has a second electric susceptibility different from the first electric susceptibility;
- and
- an upper electrode provided on the friction-charged body,
- wherein the ferroelectric material layer is formed of the negatively poled ferroelectric material and has a negative charging property in relation to the friction-charged body, or
- wherein the ferroelectric material layer is formed of the positively poled ferroelectric material and has a positive charging property in relation to the friction-charged body.
4 more elements
An electronic device comprising:
- an energy harvester comprising:
- a lower electrode;
- a ferroelectric material layer disposed on the lower electrode and formed of a negatively poled ferroelectric material or a positively poled ferroelectric material, the ferroelectric material layer having a first electric susceptibility;
- a friction-charged body which is adapted to be repeatedly contacted with and separated from the ferroelectric material layer and has a second electric susceptibility different from the first electric susceptibility;
- and
- an upper electrode provided on the friction-charged body,
- wherein the ferroelectric material layer is formed of the negatively poled ferroelectric material and has a negative charging property in relation to the friction-charged body, or
- wherein the ferroelectric material layer is formed of the positively poled ferroelectric material and has a positive charging property in relation to the friction-charged body.
5 more elements
Dependencies are inferred from the claim text.