Organic complementary-like inverters employing methanofullerene-based ambipolar field-effect transistors

Thomas D. Anthopoulos*, Dago M. De Leeuw, Eugenio Cantatore, Sepas Setayesh, Eduard J. Meijer, Cristina Tanase, Jan C. Hummelen, Paul W.M. Blom

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

171 Scopus citations

Abstract

We demonstrate a complementary-like inverter comprised of two identical ambipolar field-effect transistors based on the solution processable methanofullerene [6,6]-phenyl-C61-butyric acid methyl ester (PCBM). The transistors are capable of operating in both the p- and n-channel regimes depending upon the bias conditions. However, in the p-channel regime transistor operation is severely contact limited. We attribute this to the presence of a large injection barrier for holes at the Au/PCBM interface. Despite this barrier the inverter operates in both the first and third quadrant of the voltage output versus voltage input plot exhibiting a maximum gain in the order of 20. Since the inverter represents the basic building block of most logic circuits we anticipate that other complementary-like circuits can be realized by this approach.

Original languageEnglish (US)
Pages (from-to)4205-4207
Number of pages3
JournalApplied Physics Letters
Volume85
Issue number18
DOIs
StatePublished - Nov 1 2004

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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