An electrostatic energy harvester exploiting variable-area water electrode by respiration

  • Min Ho Seo
  • , Dong Hoon Choi
  • , Chang Hoon Han
  • , Jae Young Yoo
  • , Jun Bo Yoon

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper reports an electrostatic energy-harvester exploiting water-layer formed by respiration as a variable-area electrode. We discover that electrically conductive water-layer is instantly formed on a silicon-dioxide surface by exhaled-breath. We adopt this layer as a variable capacitive electrode for electrostatic energy-harvesting. The capacitance change was anticipated using a theoretical modeling and finite-element-method (FEM) simulation, and theoretical power-generation was estimated (∼2 μW/cm2 at 1 V). We then fabricated the prototype device and verified the capacitance change experimentally. Finally, the prototype showed charging and discharging characteristics by respiration successfully for being used as an energy-harvester driven by human-breath solely.

Original languageEnglish
Title of host publication2015 28th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages126-129
Number of pages4
EditionFebruary
ISBN (Electronic)9781479979554
DOIs
StatePublished - 26 Feb 2015
Externally publishedYes
Event2015 28th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2015 - Estoril, Portugal
Duration: 18 Jan 201522 Jan 2015

Publication series

NameProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
NumberFebruary
Volume2015-February
ISSN (Print)1084-6999

Conference

Conference2015 28th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2015
Country/TerritoryPortugal
CityEstoril
Period18/01/1522/01/15

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