Analysis and modeling of a bimorph AlN piezoelectric autonomous microgenerator stimulated by β-emitting radioisotopes

Author

Dow, Ali B Alamin ; Al-Rubaye, Hasan A. ; Kherani, Nazir P. ; Schmid, Ulrich

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Toronto, Toronto, ON, Canada

fYear

2011

fDate

24-27 July 2011

Firstpage

1

Lastpage

4

Abstract

The mathematical analysis, modelling and validation of an AlN piezoelectric microgenerator utilizing a radioisotope source are presented and discussed. The device employs tritiated silicon as a radioisotope source to drive the charging and actuating cycles of the bimorph piezoelectric cantilever. Very good agreement between the analytical modelling and experimental findings was obtained. This autonomous microgenerator opens the way for self-powered miniaturized devices.

Keywords

aluminium compounds; cantilevers; elemental semiconductors; energy harvesting; mathematical analysis; micromechanical devices; piezoelectric devices; radioisotopes; silicon; AlN; Si; bimorph piezoelectric autonomous microgenerator analysis; bimorph piezoelectric cantilever; mathematical analysis; powered unimorph energy harvesters; radioisotope source; self-powered miniaturized devices; Analytical models; Damping; Force; Load modeling; Mathematical model; Radioactive materials; Vibrations; AlN piezoelectric energy harveste; self powered microdevices; tritiated silicon;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics (ISAF/PFM), 2011 International Symposium on and 2011 International Symposium on Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials

Conference_Location

Vancouver, BC

Print_ISBN

978-1-4577-1162-6

Electronic_ISBN

978-1-4577-1161-9

Type

conf

DOI

10.1109/ISAF.2011.6014134

Filename

6014134