Communication

Graphene Audio Voltage Amplifier

  1. Erica Guerriero1,2,
  2. Laura Polloni1,3,
  3. Laura Giorgia Rizzi1,
  4. Massimiliano Bianchi1,
  5. Giovanni Mondello1,
  6. Roman Sordan1,*

Article first published online: 9 DEC 2011

DOI: 10.1002/smll.201102141

Issue

Small

Small

Volume 8, Issue 3, pages 357–361, February 6, 2012

Additional Information

How to Cite

Guerriero, E., Polloni, L., Rizzi, L. G., Bianchi, M., Mondello, G. and Sordan, R. (2012), Graphene Audio Voltage Amplifier. Small, 8: 357–361. doi: 10.1002/smll.201102141

Author Information

  1. 1

    L-NESS, Department of Physics, Politecnico di Milano, Polo di Como, Via Anzani 42, 22100 Como, Italy

  2. 2

    Department of Materials Science, Universitá degli Studi di Milano-Bicocca, Via Cozzi 53, 20125 Milan, Italy

  3. 3

    Department of Science and High Technology, Universitá degli Studi dell'Insubria, Via Valleggio 11, 22100 Como, Italy

*L-NESS, Department of Physics, Politecnico di Milano, Polo di Como, Via Anzani 42, 22100 Como, Italy.

Publication History

  1. Issue published online: 30 JAN 2012
  2. Article first published online: 9 DEC 2011
  3. Manuscript Revised: 3 NOV 2011
  4. Manuscript Received: 11 OCT 2011

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Keywords:

  • graphene;
  • molecular electronics;
  • organic field-effect transistors;
  • voltage amplifiers;
  • voltage gain
Thumbnail image of graphical abstract

A graphene audio voltage amplifier is fabricated by overlapping the gate with source/drain contacts. The fabricated complementary amplifier has a voltage gain of 3.7 (11.4 dB) at 10 kHz, a total harmonic distortion in the audio frequency range of <1%, a unity-gain frequency of 360 kHz, and a −3 dB bandwidth of 70 kHz.

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