najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2018-9-1-95-97najo-1408Research ArticleСтатьиGraphene on silicon carbide as a basis for gas- and biosensor applicationsLebedevS. P.

St.Petersburg

DavydovV. Yu.

St.Petersburg

UsachovD. Yu.

St.Petersburg

SmirnovA. N.

St.Petersburg

LevitskiiV. S.

St.Petersburg

EliseyevI. A.

St.Petersburg

GuschinaE. V.

St.Petersburg

DunaevsckiyM. S.

St.Petersburg

VilkovO. Yu.

St.Petersburg

RybkinA. G.

St.Petersburg

LebedevA. A.

St.Petersburg

NovikovS. N.

St.Petersburg

MakarovYu. N.

St.Petersburg

Ioffe InstituteRussian Federation2018240820259195–97Copyright © Lebedev S.P., Davydov V.Y., Usachov D.Y., Smirnov A.N., Levitskii V.S., Eliseyev I.A., Guschina E.V., Dunaevsckiy M.S., Vilkov O.Y., Rybkin A.G., Lebedev A.A., Novikov S.N., Makarov Y.N., 20252025Lebedev S.P., Davydov V.Y., Usachov D.Y., Smirnov A.N., Levitskii V.S., Eliseyev I.A., Guschina E.V., Dunaevsckiy M.S., Vilkov O.Y., Rybkin A.G., Lebedev A.A., Novikov S.N., Makarov Y.N.Lebedev S.P., Davydov V.Y., Usachov D.Y., Smirnov A.N., Levitskii V.S., Eliseyev I.A., Guschina E.V., Dunaevsckiy M.S., Vilkov O.Y., Rybkin A.G., Lebedev A.A., Novikov S.N., Makarov Y.N.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/1408

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.

graphenesilicon carbidethermal decompositionRaman spectroscopyAFMXPSARPESLebedev S. P. expresses gratitude for the support of the scholarship of the President of the Russian Federation for young scientists and PhD students (Order No. 1684 of December 30, 2016). The authors acknowledge Helmholtz Zentrum Berlin fu¨r Materialien und Energie for support under the bilateral Russian-German Laboratory program. D.Yu.U. acknowledges Russian Foundation for Basic Research (Grant No. 17-02-00427) and Saint- Petersburg State University for a research grant No. 11.65.42.2017.ReferencesNovoselov K.S., Fa�lko V.I., Colombo L., Gellert P.R., Schwab M.G., Kim K. A roadmap for graphene. Nature, 2012, 490(7419), P. 192–200.Novoselov K.S., Fa�lko V.I., Colombo L., Gellert P.R., Schwab M.G., Kim K. A roadmap for graphene. Nature, 2012, 490(7419), P. 192–200.Yazdi R., Iakimov T., Yakimova R. Epitaxial Graphene on SiC: A Review of Growth and Characterization. Crystals, 2016, 6(5), P. 53–97.Yazdi R., Iakimov T., Yakimova R. Epitaxial Graphene on SiC: A Review of Growth and Characterization. Crystals, 2016, 6(5), P. 53–97.Ferrari A.C., Basko D.M. Raman spectroscopy as a versatile tool for studying the properties of graphene. Nature Nanotech., 2013, 8(4), P. 235–246.Ferrari A.C., Basko D.M. Raman spectroscopy as a versatile tool for studying the properties of graphene. Nature Nanotech., 2013, 8(4), P. 235–246.Panchal V., Pearce R., Yakimova R., Tzalenchuk A., Kazakova O. Standardization of surface potential measurements of graphene domains. Sci. Rep., 2013, 3, P. 2597–2604.Panchal V., Pearce R., Yakimova R., Tzalenchuk A., Kazakova O. Standardization of surface potential measurements of graphene domains. Sci. Rep., 2013, 3, P. 2597–2604.

The authors declare that there are no conflicts of interest present.