| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power generation element which generates power in response to change in a predetermined physical quantity such as a temperature, humidity or atmospheric pressure in an ambient atmosphere. <P>SOLUTION: An electrode layer 14 is formed from metal coating film on one side of a dielectric layer 13. Furthermore, an electret layer 12 is formed by a dielectric substrate 12a in which an electret film 12b is formed by depositing an electret material on one side thereof and charging it. Moreover, an electrode 11 is formed by evaporation of a metal thin film on another side of the dielectric substrate 12a. A power generation element 10 is formed by stacking the dielectric layer 13 and the electret film 12b. When a difference between a charge amount in the first electrode 11 and a charge amount in the second electrode 14 is generated due to change in a dielectric constant of the dielectric layer 13 in response to change in predetermined physical quantity in an ambient atmosphere, a potential difference is generated between the first electrode 11 and the second electrode 14, thereby generating power. <P>COPYRIGHT: (C)2013,JPO&INPIT |
