NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS, 2018, 9 (1), P. 95–97
Graphene on silicon carbide as a basis for gas- and biosensor applications
S. P. Lebedev – Ioffe Institute, 26 Politekhnicheskaya, 194021 St.Petersburg, Russia; lebedev.sergey@mail.ioffe.ru
V.Yu. Davydov – Ioffe Institute, 26 Politekhnicheskaya, 194021 St.Petersburg, Russia; valery.davydov@mail.ioffe.ru
D.Yu. Usachov – Saint Petersburg State University, 199034 St.Petersburg, Russia; dmitry.usachov@spbu.ru
A. N. Smirnov – Ioffe Institute, 26 Politekhnicheskaya, 194021 St.Petersburg; ITMO University, 49 Kronverkskiy prospekt, 197101 St.Petersburg, Russia; alex.smirnov@mail.ioffe.ru
V. S. Levitskii – R&D Center TFTE, 28 Politekhnicheskaya, 194064 St. Petersburg, Russia; lev-vladimir@yandex.ru
I. A. Eliseyev – Ioffe Institute, 26 Politekhnicheskaya, 194021 St.Petersburg, Russia; zoid95@yandex.ru
E.V. Guschina – Ioffe Institute, 26 Politekhnicheskaya, 194021 St.Petersburg, Russia; katgushch@yandex.ru
M. S. Dunaevsckiy – Ioffe Institute, 26 Politekhnicheskaya, 194021 St.Petersburg, Russia; Mike.Dunaeffsky@mail.ioffe.ru
O.Yu. Vilkov – Saint Petersburg State University, 199034 St.Petersburg, Russia; ol.vilkov@gmail.com
A. G. Rybkin – Saint Petersburg State University, 199034 St.Petersburg, Russia; artem.rybkin@spbu.ru
A. A. Lebedev – Ioffe Institute, 26 Politekhnicheskaya, 194021 St.Petersburg, Russia; Shura.Lebe@mail.ioffe.ru
S. N. Novikov – Aalto University, Micronova, Tietotie 3, FI-02150, Espoo, Finland; sergeyvn59@gmail.com
Yu. N. Makarov – Nitride Crystals Inc., 11729 Deer Park, NY, United States; yuri.makarov@nitridecrystals.com
The structural, chemical, and electronic characteristics of graphene grown by thermal decomposition of a singlecrystal SiC substrate in Ar atmosphere are presented. It is shown that this technology allows the creation of high-quality monolayer graphene films with a small fraction of bilayer graphene inclusions. The performance of graphene on SiC as a gas sensor or a biosensor was tested. The sensitivity of gas sensors to NO2 on the order of 1 ppb and that of biosensors to fluorescein with concentration on the order of 1 ng/mL and to bovine serum albumin–fluorescein conjugate with concentration on the order of 1 ng/mL were determined.
Keywords: graphene, silicon carbide, thermal decomposition, Raman spectroscopy, AFM, XPS, ARPES.
PACS 78.67.Wj, 68.37.Ps, 74.25.nd
DOI 10.17586/2220-8054-2018-9-1-95-97
