Electronic properties of n-type carbon nanotubes prepared by CF4 plasma fluorination and amino functionalization

N O V Plank, G A Forrest, R Cheung, A J Alexander

Research output: Contribution to journalLetterpeer-review

Abstract / Description of output

Single-walled carbon nanotubes (SWNTs) have been fluorinated by CF4 plasma exposure and further functionalized with 1,2-diaminoethane. The degree of amino functionalization is dependent on the degree of initial fluorination rather than oxygen or carbon defects. Reaction at both ends of 1,2-diaminoethane was observed to increase with fluorine content. Back-gated SWNT devices have shown p-type semiconducting behavior for CF4-functionalized SW-NTs and n-type semiconducting behavior for arnino-functionalized SWNTs. The degree of n-type behavior increases with the amount of nitrogen attached to the SWNTs.

Original languageEnglish
Pages (from-to)22096-22101
Number of pages6
JournalJournal of Physical Chemistry B (Soft Condensed Matter and Biophysical Chemistry)
Volume109
Issue number47
DOIs
Publication statusPublished - 1 Dec 2005

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