Published August 6, 2020 | Version v1
Journal article Open

Morphology and Microstructure Evolution of Gold Nanostructures in the Limited Volume Porous Matrices

Creators

  • 1. Cryogenic Research Division, Scientific-Practical Materials Research Centre, NAS of Belarus, 220072 Minsk, Belarus
  • 2. Department Materials and Chemistry, Vrije Universiteit Brussel, Boulevard de la Plaine 5, 1050 Brussels, Belgium & ChemSIN—Chemstry of Surfaces, Interfaces and Nanomaterials, Université libre de Bruxcelles, Campus de la Plaine, Boulevard du Triomphe 2, CP 255. 1050 Brussels, Belgium
  • 3. Department Materials and Chemistry, Vrije Universiteit Brussel, Boulevard de la Plaine 5, 1050 Brussels, Belgium
  • 4. Laboratory of Solid State Physics, The Institute of Nuclear Physics, Ibragimov Str. 1, Nur-Sultan 050032, Kazakhstan & Laboratory of Engineering Profile, L.N. Gumilyov Eurasian National University, Mirzoyan Str. 2, Nur-Sultan 010008, Kazakhstan
  • 5. Laboratory of Solid State Physics, The Institute of Nuclear Physics, Ibragimov Str. 1, Nur-Sultan 050032, Kazakhstan & Laboratory of Engineering Profile, L.N. Gumilyov Eurasian National University, Mirzoyan Str. 2, Nur-Sultan 010008, Kazakhstan & Department of Intelligent Information Technologies, Ural Federal University, Prospekt Lenina 51, 620002 Yekaterinburg, Russia
  • 6. Department of Physics, North-Ossetian State University, Vatutina Str. 46, 362025 Vladikavkaz, Russia & Department of Physics and Engineering, ITMO University, Kronverkskiy Prospekt, St. 197101 Petersburg, Russia
  • 7. Cryogenic Research Division, Scientific-Practical Materials Research Centre, NAS of Belarus, 220072 Minsk, Belarus & Laboratory of Single Crystal Growth, South Ural State University, Lenin prospekt, Chelyabinsk 76, 454080 Chelyabinsk, Russia
  • 8. Department of Electronic Materials Technology, National University of Science and Technology MISiS, 119049 Moscow, Russia
  • 9. Department of Raman Spectroscopy (Centre "Nanobiophotonics"), Joint Institute for Nuclear Research, 6 St. Joliot-Curie, 141980 Dubna, Russia & Faculty of Nanotechnologies and New Materials, Dubna State University, Ulitsa Universitetskaya, 19, 141982 Dubna, Russia
  • 10. Department of Raman Spectroscopy (Centre "Nanobiophotonics"), Joint Institute for Nuclear Research, 6 St. Joliot-Curie, 141980 Dubna, Russia
  • 11. Laboratory of Single Crystal Growth, South Ural State University, Lenin prospekt, Chelyabinsk 76, 454080 Chelyabinsk, Russia & Department of Electronic Materials Technology, National University of Science and Technology MISiS, 119049 Moscow, Russia
  • 12. Departament of Functional Interfaces, Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, Germany

Description

The modern development of nanotechnology requires the discovery of simple approaches that ensure the controlled formation of functional nanostructures with a predetermined morphology. One of the simplest approaches is the self-assembly of nanostructures. The widespread implementation of self-assembly is limited by the complexity of controlled processes in a large volume where, due to the temperature, ion concentration, and other thermodynamics factors, local changes in diffusion-limited processes may occur, leading to unexpected nanostructure growth. The easiest ways to control the diffusion-limited processes are spatial limitation and localized growth of nanostructures in a porous matrix. In this paper, we propose to apply the method of controlled self-assembly of gold nanostructures in a limited pore volume of a silicon oxide matrix with submicron pore sizes. A detailed study of achieved gold nanostructures’ morphology, microstructure, and surface composition at different formation stages is carried out to understand the peculiarities of realized nanostructures. Based on the obtained results, a mechanism for the growth of gold nanostructures in a limited volume, which can be used for the controlled formation of nanostructures with a predetermined geometry and composition, has been proposed. The results observed in the present study can be useful for the design of plasmonic-active surfaces for surface-enhanced Raman spectroscopy-based detection of ultra-low concentration of different chemical or biological analytes, where the size of the localized gold nanostructures is comparable with the spot area of the focused laser beam.

Files

sensors-20-04397-v2.pdf

Files (2.9 MB)

Name Size Download all
md5:b67bc78fb0068a8a5f8b9cd3082f4109
2.9 MB Preview Download

Additional details

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