Laser direct writing of hydrous ruthenium dioxide micro-pseudocapacitors

Craig B. Arnold, Ryan C. Wartena, Bhanu Pratap, Karen E. Swider-Lyons, Alberto Piqué

Research output: Contribution to journalConference articlepeer-review

7 Scopus citations

Abstract

We are using a laser engineering approach to develop and optimize hydrous ruthenium dioxide (RuOxHy or RuO2·0.5 H2O) pseudocapacitors. We employ a novel laser forward transfer process, Matrix Assisted Pulsed Laser Evaporation Direct Write (MAPLE-DW), in combination with UV laser machining, to fabricate mesoscale pseudocapacitors and microbatteries under ambient temperature and atmospheric conditions. Thin films with the desired high surface area morphology are obtained without compromising their electrochemical performance. The highest capacitance structures are achieved by depositing mixtures of sulfuric acid with the RuO2·0.5 H2O electrode material. Our pseudocapacitors exhibit linear discharge behavior and their properties scale proportionately when assembled in parallel and series configurations.

Original languageEnglish (US)
Pages (from-to)275-280
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume698
StatePublished - Jan 1 2002
Externally publishedYes
EventElectronactive Polymers and Rapid Prototyping - Boston, MA, United States
Duration: Nov 26 2001Nov 30 2001

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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