TITLE

Integrated complementary graphene inverter

AUTHOR(S)
Traversi, Floriano; Russo, Valeria; Sordan, Roman
PUB. DATE
June 2009
SOURCE
Applied Physics Letters;6/1/2009, Vol. 94 Issue 22, p223312
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The operation of a digital logic inverter consisting of one p- and one n-type graphene transistor integrated on the same sheet of monolayer graphene is demonstrated. Both transistors initially exhibited p-type behavior at low gate voltages, since air contamination shifted their Dirac points from zero to a positive gate voltage. Contaminants in one transistor were removed by electrical annealing, which shifted its Dirac point back and therefore restored n-type behavior. Boolean inversion is obtained by operating the transistors between their Dirac points. The fabricated inverter represents an important step toward the development of digital integrated circuits on graphene.
ACCESSION #
41139404

 

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