Cu-Fe-S Nanocrystals Exhibiting Tunable Localized Surface Plasmon Resonance in the Visible to NIR Spectral Ranges

Grzegorz Gąbka , Piotr Bujak , Andrzej Ostrowski , Waldemar Tomaszewski , Wojciech Lisowski , Janusz Sobczak , Adam Proń


Cu–Fe–S nanocrystals exhibiting a strong localized surface plasmon resonance (LSPR) effect were synthesized for the first time. The elaborated reproducible preparation procedure involved copper(II) oleate, iron(III) stearate, and sulfur powder dissolved in oleylamine (OLA) as precursors. The wavelength of the plasmonic resonance maximum could be tuned by changing the Cu/Fe ratio in the resulting nanocrystals, being the most energetic for the 1:1 ratio (486 nm) and undergoing a bathochromic shift to ca. 1200 nm with an increase to 6:1. LSPR could also be observed in nanocrystals prepared from the same metal precursors and sulfur powder dissolved in 1-octadecene (ODE), provided that the sulfur precursor was taken in excess. Detailed analysis of the reaction mixture by chromatographic techniques, supplemented by mass spectrometry and 1H NMR spectroscopy enabled the identification of the true chemical nature of the sulfur precursor in S/OLA, namely, (C18H35NH3+)(C18H35NH–S8–), a reactive product of the reduction of elemental sulfur by the amine groups of OLA. In the case of the S/ODE precursor, the true precursors are much less reactive primary or secondary thioethers and dialkyl polysulfides.
Author Grzegorz Gąbka KChTP
Grzegorz Gąbka,,
- Chair Of Polymer Chemistry And Technology
, Piotr Bujak KChTP
Piotr Bujak,,
- Chair Of Polymer Chemistry And Technology
, Andrzej Ostrowski KChNTCS
Andrzej Ostrowski,,
- Chair Of Inorganic Chemistry And Solid State Technology
, Waldemar Tomaszewski ZMW
Waldemar Tomaszewski,,
- Department Of High-Energetic Materials
, Wojciech Lisowski - Institute of Physical Chemistry Polish Academy of Sciences (IChF PAN)
Wojciech Lisowski,,
, Janusz Sobczak - Institute of Physical Chemistry Polish Academy of Sciences (IChF PAN)
Janusz Sobczak,,
, Adam Proń KChTP
Adam Proń,,
- Chair Of Polymer Chemistry And Technology
Journal seriesInorganic Chemistry, ISSN 0020-1669
Issue year2016
Publication size in sheets0.5
Languageen angielski
wdpb_publikacje_pliki_plik_publikacja_2887_org.pdf 3.74 MB
Score (nominal)45
ScoreMinisterial score = 40.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 45.0, 28-11-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 4.857 (2) - 2016=4.503 (5)
Citation count*10 (2018-07-17)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.