Electrochemical actuation of porous silicon in aqueous electrolytes

Publikationstyp
Doctoral Thesis
Date Issued
2023
Sprache
English
Author(s)
Brinker, Manuel Johannes  orcid-logo
Advisor
Huber, Patrick  orcid-logo
Referee
Meißner, Robert  orcid-logo
Title Granting Institution
Technische Universität Hamburg
Place of Title Granting Institution
Hamburg
Examination Date
2023-06-07
Institute
Material- und Röntgenphysik M-2  
TORE-DOI
10.15480/882.5201
TORE-URI
http://hdl.handle.net/11420/15450
Citation
Technische Universität Hamburg (2023)
Porous silicon is highly versatile functional material. In this thesis two different electrochemistry-inspired approaches are developed and investigated to integrate an actuator functionality into porous silicon. The first approach aims to utilise electrochemo-mechanical coupling at the interface of a porous silicon electrode immersed in an aqueous electrolyte solution. The second approach comprises the integration of the electroactive, electrically conductive polymer polypyrrole into the porous silicon pore structure to create a hybrid material. Both approaches achieve a robust and highly reproducible actuation that follows the applied potential linear and whose work density compares well to classical piezo actuators.
Subjects
porous silicon
polypyrrole
actuator
electrochemical characterization
electrochemical double layer
electrosorption
DDC Class
620: Ingenieurwissenschaften
Lizenz
https://creativecommons.org/licenses/by-nc-sa/4.0/
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