December 21, 2019 Journal article Open Access

Dzmitry V Yakimchuk; Egor Yu Kaniukov; Sergey Lepeshov; Victoria D Bundyukova; Sergey E Demyanov; Grigory M Arzumanyan; Nelya V Doroshkevich; Kahramon Z Mamatkulov; Arne Bochmann; Martin Presselt; Ondrej Stranik; Soslan A Khubezhov; Alex Krasnok; Andrea Alù; Vladimir A Sivakov

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{
  "publisher": "Zenodo", 
  "DOI": "10.5281/zenodo.3697207", 
  "language": "eng", 
  "title": "Self-organized spatially separated silver 3D dendrites as efficient plasmonic nanostructures for Surface-enhanced Raman spectroscopy applications", 
  "issued": {
    "date-parts": [
      [
        2019, 
        12, 
        21
      ]
    ]
  }, 
  "abstract": "<p>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 &ldquo;hot spots&rdquo; 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&ndash;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.</p>", 
  "author": [
    {
      "family": "Dzmitry V Yakimchuk"
    }, 
    {
      "family": "Egor Yu Kaniukov"
    }, 
    {
      "family": "Sergey Lepeshov"
    }, 
    {
      "family": "Victoria D Bundyukova"
    }, 
    {
      "family": "Sergey E Demyanov"
    }, 
    {
      "family": "Grigory M Arzumanyan"
    }, 
    {
      "family": "Nelya V Doroshkevich"
    }, 
    {
      "family": "Kahramon Z Mamatkulov"
    }, 
    {
      "family": "Arne Bochmann"
    }, 
    {
      "family": "Martin Presselt"
    }, 
    {
      "family": "Ondrej Stranik"
    }, 
    {
      "family": "Soslan A  Khubezhov"
    }, 
    {
      "family": "Alex Krasnok"
    }, 
    {
      "family": "Andrea Al\u00f9"
    }, 
    {
      "family": "Vladimir A Sivakov"
    }
  ], 
  "version": "Author Accepted Manuscript", 
  "type": "article-journal", 
  "id": "3697207"
}