Electrochemically tuned properties for electrolyte-free carbon nanotube sheets

Alexander A. Zakhidov, Dong Seok Suh, Alexander A. Kuznetsov, Joseph N. Barisci, Edgar Muñoz, Alan B. Dalton, Steve Collins, Von H. Ebron, Mel Zhang, John P. Ferraris, Anvar A. Zakhidov, Ray H. Baughman

Research output: Contribution to journalArticlepeer-review

26 Scopus citations


Injecting high electronic charge densities can profoundly change the optical, electrical, and magnetic properties of materials. Such charge injection in bulk materials has traditionally involved either dopant intercalation or the maintained use of a contacting electrolyte. Tunable electrochemical charge injection and charge retention, in which neither volumetric intercalation of ions nor maintained electrolyte contact is needed, are demonstrated for carbon nanotube sheets in the absence of an applied field. The tunability of electrical conductivity and electron field emission in the subsequent material is presented. Application of this material to supercapacitors may extend their charge-storage times because they can retain charge after the removal of the electrolyte.

Original languageEnglish
Pages (from-to)2266-2272
Number of pages7
JournalAdvanced Functional Materials
Issue number14
StatePublished - 24 Jul 2009


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