Contacting mode operation of work function energy harvester

Aapo Varpula (Corresponding Author), Sampo J. Laakso, Tahvo Havia, Jukka Kyynäräinen, Mika Prunnila (Corresponding Author)

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

Abstract

The work function energy harvester (WFEH) is a variable capacitance vibration energy harvester where the charging of the capacitor electrodes is driven by the work function difference of the electrode materials. In this work, we investigate operation modes of the WFEH by utilizing a macroscopic parallel plate capacitor with Cu and Al electrodes and varying plate distance. We show that by charging the electrodes of the WFEH by letting the electrode plates touch during the operation a significant output power enhancement can be achieved in comparison to the case where the electrodes are charged and discharged only through a load resistor.
Original languageEnglish
Article number012010
JournalJournal of Physics: Conference Series
Volume557
Issue numberConference 1
DOIs
Publication statusPublished - 2014
MoE publication typeA1 Journal article-refereed
Event14th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, PowerMEMS 2014 - Hyogo, Japan
Duration: 18 Nov 201421 Nov 2014

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electrodes
charging
capacitors
energy
touch
electrode materials
parallel plates
resistors
capacitance
vibration
augmentation
output

Cite this

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title = "Contacting mode operation of work function energy harvester",
abstract = "The work function energy harvester (WFEH) is a variable capacitance vibration energy harvester where the charging of the capacitor electrodes is driven by the work function difference of the electrode materials. In this work, we investigate operation modes of the WFEH by utilizing a macroscopic parallel plate capacitor with Cu and Al electrodes and varying plate distance. We show that by charging the electrodes of the WFEH by letting the electrode plates touch during the operation a significant output power enhancement can be achieved in comparison to the case where the electrodes are charged and discharged only through a load resistor.",
author = "Aapo Varpula and Laakso, {Sampo J.} and Tahvo Havia and Jukka Kyyn{\"a}r{\"a}inen and Mika Prunnila",
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language = "English",
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Contacting mode operation of work function energy harvester. / Varpula, Aapo (Corresponding Author); Laakso, Sampo J.; Havia, Tahvo; Kyynäräinen, Jukka; Prunnila, Mika (Corresponding Author).

In: Journal of Physics: Conference Series, Vol. 557, No. Conference 1, 012010, 2014.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Contacting mode operation of work function energy harvester

AU - Varpula, Aapo

AU - Laakso, Sampo J.

AU - Havia, Tahvo

AU - Kyynäräinen, Jukka

AU - Prunnila, Mika

N1 - Project code: 74803

PY - 2014

Y1 - 2014

N2 - The work function energy harvester (WFEH) is a variable capacitance vibration energy harvester where the charging of the capacitor electrodes is driven by the work function difference of the electrode materials. In this work, we investigate operation modes of the WFEH by utilizing a macroscopic parallel plate capacitor with Cu and Al electrodes and varying plate distance. We show that by charging the electrodes of the WFEH by letting the electrode plates touch during the operation a significant output power enhancement can be achieved in comparison to the case where the electrodes are charged and discharged only through a load resistor.

AB - The work function energy harvester (WFEH) is a variable capacitance vibration energy harvester where the charging of the capacitor electrodes is driven by the work function difference of the electrode materials. In this work, we investigate operation modes of the WFEH by utilizing a macroscopic parallel plate capacitor with Cu and Al electrodes and varying plate distance. We show that by charging the electrodes of the WFEH by letting the electrode plates touch during the operation a significant output power enhancement can be achieved in comparison to the case where the electrodes are charged and discharged only through a load resistor.

U2 - 10.1088/1742-6596/557/1/012010

DO - 10.1088/1742-6596/557/1/012010

M3 - Article

VL - 557

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - Conference 1

M1 - 012010

ER -