Published December 21, 2019 | Version Author Accepted Manuscript
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Self-organized spatially separated silver 3D dendrites as efficient plasmonic nanostructures for Surface-enhanced Raman spectroscopy applications

  • 1. Cryogenic Research Division, Scientific-Practical Materials Research Centre, NAS of Belarus, Minsk 220072, Belarus
  • 2. Institute of Chemistry of New Materials of National Academy of Sciences of Belarus, 36 St. Francyska Skaryny 220141 Minsk, Belarus & Department of Electronics Materials Technology, National University of Science and Technology MISiS, 4 Leninskiy Prospekt, 119049 Moscow, Russian Federation
  • 3. Department of Physic, ITMO University, 49 Avenue Kronverksky 197101 St. Petersburg, Russian Federation
  • 4. Joint Institute for Nuclear Research, 6 St. Joliot-Curie 141980 Dubna, Russian Federation & Dubna State University, 19 St. Universitetskaya 141982 Dubna, Russian Federation
  • 5. Dubna State University, 19 St. Universitetskaya 141982 Dubna, Russian Federation
  • 6. Ernst-Abbe-Hochschule Jena, 2 St. Carl-Zeiß-Promenade 07745 Jena, Germany
  • 7. Leibniz Institute of Photonic Technology, 9 St. Albert-Einstein-Straße 07745 Jena, Germany
  • 8. Department of Physic, North-Ossetian State University, 46 St. Vatutina, 362025 Vladikavkaz, Russian Federation
  • 9. Department of Physic, ITMO University, 49 Avenue Kronverksky 197101 St. Petersburg, Russian Federation & Photonics Initiative, Advanced Science Research Center, 85 St. Nicholas Terrace, 10031 New York, United States
  • 10. Photonics Initiative, Advanced Science Research Center, 85 St. Nicholas Terrace, 10031 New York, United States & Physics Program, Graduate Center City University of New York, 85 St. Nicholas Terrace 10031 New York, United States & Department of Electrical Engineering, City College of New York, 85 St. Nicholas Terrace 10031 New York, United States

Description

Surface-enhanced Raman spectroscopy (SERS) is a promising optical method for analyzing molecular samples of various nature. Most SERS studies are of an applied nature indicating a serious potential for their application in analytical practice. Dendrite-like nanostructures have great potential for SERS, but the lack of a method for their predictable production significantly limits their implementation. In this paper, a method for controllable obtaining spatially separated, self-organized and highly-branched silver dendrites via template synthesis in pores of SiO2/Si is proposed. The dendritic branches have nanoscale roughness creating many plasmon-active “hot spots” required for SERS. The first held 3D modeling of the external electromagnetic wave interaction with such a dendrite, as well as experimental data, confirm this theory. Using the example of a reference biological analyte, which is usually used as a label for other biological molecules, the dendrites SERS-sensitivity up to 10–15 M was demonstrated with Enhancement factor of 108. The comparison of simulation results with SERS experiments allows distinguishing the presence of electromagnetic and chemical contributions, which have a different effect at various analyte concentrations.

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Yakimchuk et al (AAM) - J. Appl. Phys. 126, 233105 (2019).pdf

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Additional details

Related works

Is previous version of
Journal article: 10.1063/1.5129207 (DOI)

Funding

SPINMULTIFILM – Physical principles of the creation of novel SPINtronic materials on the base of MULTIlayered metal-oxide FILMs for magnetic sensors and MRAM 778308
European Commission