Formation of laterally-oriented monolayers of plasmonic silver nanoplats and their ensembles with cadmium selenide quantum dots on the sur face of thin polymeric film

Authors

  • Pavel O. Malakhovsky Research Institute for Physical Chemical Problems, Belarusian State University, 14 Lieninhradskaja Street, Minsk 220006, Belarus
  • Mikhail V. Artemyev Research Institute for Physical Chemical Problems, Belarusian State University, 14 Lieninhradskaja Street, Minsk 220006, Belarus

Keywords:

plasmonic silver nanoplates, electrostatic deposition, surface plasmon resonance, quantum dots
Supporting Agencies
We acknowledge partial financial support from the Belarusian Republican Foundation for Fundamental Research (grant No. X18КОРГ-001) and state program «Chemreagents» (project 1.36). We thank our colleagues K. Skrutskaya and M. Mokhovikov for help with TEM study.

Abstract

We present here a novel method for formation of laterally-oriented monolayers of plasmonic silver nanoplates and their electrostatic ensembles with semiconductor quantum dots. Monolayers were electrostatically deposited on the surface of thin polymeric film containing different amount of tertiary amino groups. This method allows simultaneously investigate optical properties and morphology of silver nanoplates using transmittance electron microscopy. The optical density of films and surface concentration of silver nanoplates is proportional to the percentage of tertiary amino groups in the polymeric film. A surface ligand exchange was used for functionalization of the surface of silver nanoplates toward formation of electrostatic ensembles with colloidal quantum dots. We observed a straight correlation between the red shift of surface plasmon resonances in silver nanoplates and alkyl chain length of ligand molecules.

Author Biographies

  • Pavel O. Malakhovsky, Research Institute for Physical Chemical Problems, Belarusian State University, 14 Lieninhradskaja Street, Minsk 220006, Belarus

    junior researcher at the laboratory of nanochemistry

  • Mikhail V. Artemyev, Research Institute for Physical Chemical Problems, Belarusian State University, 14 Lieninhradskaja Street, Minsk 220006, Belarus

    doctor of science (chemistry); head of the laboratory of nanochemistry

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Published

2019-08-30

Issue

No. 2 (2019): Journal of the Belarusian State University. Chemistry

Section

Original Articles

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How to Cite

[1]
Malakhovsky, P.O. 2019. Formation of laterally-oriented monolayers of plasmonic silver nanoplats and their ensembles with cadmium selenide quantum dots on the sur face of thin polymeric film. Journal of the Belarusian State University. Chemistry. 2 (Aug. 2019), 21–28. DOI:https://doi.org/10.33581/2520-257X-2019-2-21-28.