Metal-graphene nanostructures for SEIRA spectroscopy
Artikel i vetenskaplig tidskrift, 2020

Infrared spectroscopy is widely used technique for observing bioorganic materials, but sometimes scientist have to work with small amount of investigated materials and infrared light interacts poorly with nanometric size molecules. Taking into account unique electro-optical properties of graphene and metal we demonstrated possibility to use metal-graphene nanostructures for label-free detection of thymine. It was shown that IR spectra of thymine adsorbed on the composite nanostructures, such as Au "nanostars" with graphene, is more enhanced than whenthese nanoparticles are used without graphene. The enhancement in IR absorption for complex thymine/Au/graphene depends on size of Au nanoparticlesand thymine's molecular group.

Au Nanostar

SEIRA

graphene

metal-graphene complex

SERS

gold

Författare

Olean Fesenko

Institute of Mathematics, NAS Ukraine

Andrii Yaremkevich

Institute of Mathematics, NAS Ukraine

Wolfgang Steinmaurer

Johannes Kepler Universität Linz (JKU)

Battulga Munkhbat

Chalmers, Fysik, Bionanofotonik

Calin Hrelescu

Trinity College Dublin

Francesco Bonaccorso

Istituto Italiano di Tecnologia

Molecular Crystals and Liquid Crystals

1542-1406 (ISSN) 1543-5318 (eISSN)

Vol. 701 1 106-117

Ämneskategorier

Atom- och molekylfysik och optik

Materialkemi

Annan kemi

DOI

10.1080/15421406.2020.1741125

Mer information

Senast uppdaterat

2020-09-28