Protective ligand shells for luminescent SiO₂-coated alloyed semiconductor nanocrystals

ACS Applied Materials & Interfaces
María AcebrónBeatriz H Juárez

Abstract

SiO2 encapsulation of alloyed CdSeZnS nanocrystals (NCs) shows differences in terms of optical properties and luminescence quantum yield, depending on the surface composition, size, and ligand content. In this work, emphasis has been placed on the fine control required to obtain luminescent SiO2 encapsulated NCs by studying the role of oleic acid (OA), stearic acid (SA), and dodecanethiol (DDT) ligands on the alloyed NCs. While the use of anchored DDT molecules is essential to preserve the optical properties, intercalated OA and SA play a critical role for SiO2 nucleation, as stated by (1)H NMR (including DOSY and NOESY) spectroscopy. These results emphasize the importance of surface chemistry in NCs; it is crucial to control their reactivity, and therefore their impact, in different applications, from optics to biomedicine.

References

Dec 3, 2002·Science·Benoit DubertretAlbert Libchaber
Oct 7, 2004·Angewandte Chemie·Thomas Nann, Paul Mulvaney
May 11, 2006·Journal of the American Chemical Society·Zhivko ZhelevRumiana Bakalova
Jun 25, 2010·Chemical Communications : Chem Comm·Ping YangTakahisa Taguchi
Jul 9, 2010·Journal of the American Chemical Society·Bernd FritzingerZeger Hens
Oct 26, 2010·Chemical Society Reviews·Celso de Mello Donegá
Jan 17, 2012·Sensors·Lijia ShaoFeng Yan
Jun 12, 2012·Chemical Communications : Chem Comm·Michał MalickiEmily A Weiss
Aug 6, 2013·Journal of Colloid and Interface Science·Mariano A ScorciapinoCarla Cannas
Sep 14, 2013·Journal of the American Chemical Society·Vladimir A VlaskinDaniel R Gamelin
Jun 24, 2014·ACS Applied Materials & Interfaces·Tangi AubertZeger Hens

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Citations

May 11, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Xiao TangTobias Kipp
Feb 14, 2018·ACS Applied Materials & Interfaces·Andrés BlackRobert J Young
May 22, 2018·The Journal of Physical Chemistry Letters·María AcebrónBeatriz H Juárez
Jun 14, 2019·ACS Nano·Héctor Rodríguez-RodríguezBeatriz H Juárez

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