Supersensitive graphene-based gas sensor


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Resumo

Epitaxial graphene layers are produced with the aid of thermal destruction of the surface of a semi-insulating SiC substrate. Raman spectroscopy and atomic-force microscopy are employed in the study of the film homogeneity. A prototype of the gas sensor based on the films is fabricated. The device is sensitive to the NO2 molecules at a level of 5 ppb (five particles per billion). A possibility of the industrial application of the sensor is discussed.

Sobre autores

A. Lebedev

Ioffe Physical Technical Institute; St. Petersburg National University of Information Technologies, Mechanics, and Optics

Autor responsável pela correspondência
Email: shura_lebe@mail.ioffe.ru
Rússia, Politekhnicheskaya ul. 26, St. Petersburg, 194021; Kronverkskii pr. 49, St. Petersburg, 197101

S. Lebedev

Ioffe Physical Technical Institute; St. Petersburg National University of Information Technologies, Mechanics, and Optics

Email: shura_lebe@mail.ioffe.ru
Rússia, Politekhnicheskaya ul. 26, St. Petersburg, 194021; Kronverkskii pr. 49, St. Petersburg, 197101

S. Novikov

Aalto University

Email: shura_lebe@mail.ioffe.ru
Finlândia, Espoo, 02150

V. Davydov

Ioffe Physical Technical Institute

Email: shura_lebe@mail.ioffe.ru
Rússia, Politekhnicheskaya ul. 26, St. Petersburg, 194021

A. Smirnov

Ioffe Physical Technical Institute; St. Petersburg National University of Information Technologies, Mechanics, and Optics

Email: shura_lebe@mail.ioffe.ru
Rússia, Politekhnicheskaya ul. 26, St. Petersburg, 194021; Kronverkskii pr. 49, St. Petersburg, 197101

D. Litvin

Ioffe Physical Technical Institute; Nitridnye Kristally Group

Email: shura_lebe@mail.ioffe.ru
Rússia, Politekhnicheskaya ul. 26, St. Petersburg, 194021; St. Petersburg, 194156

Yu. Makarov

Nitridnye Kristally Group; Nitride Crystals Inc.

Email: shura_lebe@mail.ioffe.ru
Rússia, St. Petersburg, 194156; Deer Park, New York, 11729

V. Levitskii

Ioffe Physical Technical Institute

Email: shura_lebe@mail.ioffe.ru
Rússia, Politekhnicheskaya ul. 26, St. Petersburg, 194021

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