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G. Sordo, J. Iannacci, E. Serra, M. Bonaldi, A. Borrielli, M. Schneider, U. Schmid:
"Study on the performance of tailored spring elements for piezoelectric MEMS energy harvesters";
Talk: 2015 XVIII AISEM Annual Conference, Trento, Italy; 02-03-2015 - 02-05-2015; in: "2015 XVIII AISEM Annual Conference", IEEE, (2015), ISBN: 978-1-4799-8591-3.

Energy harvesting has recently attracted much
attention of the research community as a key enabling technology
in applications such as autonomous Wireless Sensors Network
(WSN), Internet of Things (IoT), e-health and more in general all
the applicative scenarios requiring an autonomous low power
distributed system. Among the various energy harvesting
techniques, vibrational piezoelectric energy harvesters have
several advantages compare to other solutions (e.g. high output
density power, high output voltage). One of the main constraints
in the exploitation of such a technology is the limited bandwidth
of the devices, intrinsic to the mechanical resonator typically
used. In this contribution, different resonators based on a
cantilever-like structure are studied both by FEM simulation and
by measurements of physical samples. The goal of this
preliminary study is to verify the effectiveness of those whip
designs for energy harvesting purposes.

Energy harvesting has recently attracted much
attention of the research community as a key enabling technology
in applications such as autonomous Wireless Sensors Network
(WSN), Internet of Things (IoT), e-health and more in general all
the applicative scenarios requiring an autonomous low power
distributed system. Among the various energy harvesting
techniques, vibrational piezoelectric energy harvesters have
several advantages compare to other solutions (e.g. high output
density power, high output voltage). One of the main constraints
in the exploitation of such a technology is the limited bandwidth
of the devices, intrinsic to the mechanical resonator typically
used. In this contribution, different resonators based on a
cantilever-like structure are studied both by FEM simulation and
by measurements of physical samples. The goal of this
preliminary study is to verify the effectiveness of those whip
designs for energy harvesting purposes.

MEMS Energy Harvesting, Piezoelectric AlN