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Information × Registration Number 0219U102133, 0119U101913 , R & D reports Title Design of plasmon-ehanced substrates for diagnostics of ultralow amounts of biological substances popup.stage_title Head Valakh Mykhailo Ya., Доктор фізико-математичних наук Registration Date 19-12-2019 Organization V. Lashkaryov Institute of semiconductor physics popup.description2  Effective SERS substrates were developed on the basis of laterally ordered gold nanostructures, their properties were investigated. The correlation between the technological conditions of nanostructures formation, optical properties and the Raman signal enhancement efficiency from analytes was established. Photolithography method has been used to realize substrates with laterally ordered gold nanostructures. It is established that after annealing of the samples at T = 420 ° C, the morphological homogeneity of the nanostructures improves, changing the geometric and structural parameters of the nanoparticles, which is reflected in the reduction of the half-width of the plasmon absorption band by almost 2 times and shifting its maximum from 670 to 600 nm. Such changes in the parameters of the gold nanoparticles contribute to a more efficient amplification of the Raman signal of the analyte molecules due to the electromagnetic mechanism. It was found that the substrates developed by this SERS method are better by their paramenters compare to commercial in Raman scattering enhancement. Product Description popup.authors Beketov Gennadiy V. Hreshchuk Oleksandr M. Gyle Evgen H. Dan'ko Viktor A. Dzhagan Volodymyr M. Lukaniuk Mariia V. Matvieievska Neonila A. Shepelyavyi Petro Ye. Shynkarenko Olena V. Yukhymchuk Volodymyr O. Yaremko Anatoliy M. popup.nrat_date 2020-04-02 Close