Crystallinity as a factor of SERS stability of silver nanoparticles formed by Ar+ irradiation
Natalia V. Doroshina,
Oleg A. Streletskiy,
Ilya A. Zavidovskiy,
Mikhail K. Tatmyshevskiy,
Gleb I. Tselikov,
Olesya O. Kapitanova,
Alexander V. Syuy,
Roman Romanov,
Prabhash Mishra,
Vjaceslavs Bobrovs,
Andrey M. Markeev,
Dmitry I. Yakubovsky,
Irina A. Veselova,
Aleksey V. Arsenin,
Valentyn S. Volkov,
Sergey M. Novikov
Affiliations
Natalia V. Doroshina
Moscow Center for Advanced Studies, Kulakova Str. 20, Moscow, Russia
Oleg A. Streletskiy
Faculty of Physics, M.V. Lomonosov Moscow State University, 119991, Moscow, Russia
Ilya A. Zavidovskiy
Moscow Center for Advanced Studies, Kulakova Str. 20, Moscow, Russia
Mikhail K. Tatmyshevskiy
Moscow Center for Advanced Studies, Kulakova Str. 20, Moscow, Russia
Gleb I. Tselikov
Emerging Technologies Research Center, XPANCEO, Dubai, 00000, United Arab Emirates
Olesya O. Kapitanova
Moscow Center for Advanced Studies, Kulakova Str. 20, Moscow, Russia; Faculty of Chemistry, M.V. Lomonosov Moscow State University, 119991, Moscow, Russia
Alexander V. Syuy
Moscow Center for Advanced Studies, Kulakova Str. 20, Moscow, Russia
Roman Romanov
Moscow Center for Advanced Studies, Kulakova Str. 20, Moscow, Russia
Prabhash Mishra
Quantum Materials and Devices Laboratory, Faculty of Engineering and Technology, Jamia Millia Islamia (Central University), 110025, New Delhi, India
Vjaceslavs Bobrovs
Institute of Photonics, Electronics and Telecommunications, Riga, 1048, Latvia
Andrey M. Markeev
Moscow Center for Advanced Studies, Kulakova Str. 20, Moscow, Russia
Dmitry I. Yakubovsky
Moscow Center for Advanced Studies, Kulakova Str. 20, Moscow, Russia
Irina A. Veselova
Faculty of Chemistry, M.V. Lomonosov Moscow State University, 119991, Moscow, Russia
Aleksey V. Arsenin
Moscow Center for Advanced Studies, Kulakova Str. 20, Moscow, Russia; Yerevan State University, 0025, Yerevan, Armenia
Valentyn S. Volkov
Emerging Technologies Research Center, XPANCEO, Dubai, 00000, United Arab Emirates; Yerevan State University, 0025, Yerevan, Armenia
Sergey M. Novikov
Moscow Center for Advanced Studies, Kulakova Str. 20, Moscow, Russia; Corresponding author.
The plasmonic sensors based on silver nanoparticles are limited in application due to their relatively fast degradation in the ambient atmosphere. The technology of ion-beam modification for the creation of monocrystalline silver nanoparticles (NPs) with stable plasmonic properties will expand the application of silver nanostructures. In the present study, highly-stable monocrystalline NPs were formed on the basis of a thin silver film by low-energy ion irradiation. Combined with lithography, this technique allows the creation of nanoparticle ensembles in variant forms. The characterization of the nanoparticles formed by ion-beam modification showed long-term outstanding for Ag nanoparticles stability of their plasmonic properties due to their monocrystalline structure. According to optical spectroscopy data, the reliable plasmonic properties in the ambient atmosphere are preserved for up to 39 days. The mapping of crystal violet dye via surface-enhanced Raman spectroscopy (SERS) revealed a strong amplification factor sustaining at least thrice as long as the one of similarly sized polycrystalline silver NPs formed by annealing. The plasmonic properties sustain more than a month of storage in the ambient atmosphere. Thus, ion-beam modification of silver film makes it possible to fabricate NPs with stable plasmonic properties and form clusters of NPs for sensor technology and SERS applications.
