Thermoelectric behavior of microchannel plates fabricated by photo-assisted electrochemical etching

  • Li Sun
  • , Fengjuan Miao
  • , Lianwei Wang*
  • , Paul K. Chu
  • , P. M. Sarro
  • *Corresponding author for this work

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

2 Scopus citations

Abstract

We demonstrate the favorable thermoelectric properties of silicon microchannel plates prepared by photo-assisted electrochemical etching (PAECE). The microchannels have a square lattice distribution. The lateral Seebeck coefficient is related to the orientation and is 186 μV/K along the edge of the square and 204 μV/K when the measurement is performed at 45° with respect to the edge. The Seebeck coefficient in the vertical direction is about one sixth of the lateral value. In order to investigate whether the photonic crystal properties of the silicon microchannels have any influence on the Seebeck coefficient, both microchannel plates with holes tilted 7° with respect to the vertical direction and ordinary silicon microchannel plates are tested. They exhibit a similar thermoelectric behavior. These values are comparable to the value of silicon nanowires at room temperature, making the use of microchannel plates a good alternative to nanowires for temperature sensors.

Original languageEnglish
Title of host publicationMEMS 2010 - The 23rd IEEE International Conference on Micro Electro Mechanical Systems, Technical Digest
Pages576-579
Number of pages4
DOIs
StatePublished - 2010
Event23rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2010 - Hong Kong, China
Duration: 24 Jan 201028 Jan 2010

Publication series

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

Conference

Conference23rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2010
Country/TerritoryChina
CityHong Kong
Period24/01/1028/01/10

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