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Title: On-chip and freestanding elastic carbon films for micro-supercapacitors

Journal Article · · Science
 [1];  [2];  [3];  [1];  [1];  [1];  [4];  [5];  [1];  [1];  [3];  [6];  [1]
  1. Univ. Paul Sabatier-Toulouse III, Toulouse (France); Reseau sur le Stockage Electrochimique de l'Energie (France)
  2. Reseau sur le Stockage Electrochimique de l'Energie (France); Univ. Lille 1 Science et Technologies, Villeneuve d'Ascq cedex (France)
  3. Univ. Paul Sabatier (IPS)-CNRS, Univ. de Toulouse, Toulouse (France)
  4. Univ. Paul Sabatier (IPS)-CNRS, Univ. de Toulouse, Toulouse (France); Univ. de Toulouse, Toulouse Cedex (France)
  5. Reseau sur le Stockage Electrochimique de l'Energie (France); Univ. de Picardie Jules Verne, Amiens (France)
  6. Drexel Univ., Philadelphia, PA (United States)

Integration of electrochemical capacitors with silicon-based electronics is a major challenge, limiting energy storage on a chip. We describe a wafer-scale process for manufacturing strongly adhering carbide-derived carbon films and interdigitated micro-supercapacitors with embedded titanium carbide current collectors, fully compatible with current microfabrication and silicon-based device technology. Capacitance of those films reaches 410 farads per cubic centimeter/200 millifarads per square centimeter in aqueous electrolyte and 170 farads per cubic centimeter/85 millifarads per square centimeter in organic electrolyte. We also demonstrate preparation of self-supported, mechanically stable, micrometer-thick porous carbon films with a Young’s modulus of 14.5 gigapascals, with the possibility of further transfer onto flexible substrates. Lastly, these materials are interesting for applications in structural energy storage, tribology, and gas separation.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1346630
Journal Information:
Science, Vol. 351, Issue 6274; ISSN 0036-8075
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 542 works
Citation information provided by
Web of Science

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Advances on three‐dimensional electrodes for micro‐supercapacitors: A mini‐review journal March 2019
Thermoswitchable on-chip microsupercapacitors: one potential self-protection solution for electronic devices journal January 2018
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