Silica encapsulation of hydrophobically ligated PbSe nanocrystals

Langmuir : the ACS Journal of Surfaces and Colloids
Masih DarbandiThomas Nann

Abstract

Spherical PbSe@SiO2 nanoparticles have been successfully synthesized within reverse micelles via metal alkoxide hydrolysis and condensation within a microemulsion system. These core-shell nanoparticles were characterized by transmission electron microscopy (TEM), NIR absorption spectroscopy, energy-dispersive X-ray analysis, and TEM electron diffractions. It shows that the obtained core-shell structures have a spherical shape with narrow size distribution (average size approximately 35 nm) and smooth surfaces. The size of the particles and the thickness of the shells can be controlled by manipulating the relative rates of the hydrolysis and condensation reactions of tetraethoxysilane (TEOS) within the microemulsion.

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Citations

Oct 21, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·Yiping FangJiye Fang
Feb 12, 2009·ACS Nano·Oliver EhlertThomas Nann
Jan 28, 2012·Chemical Communications : Chem Comm·Shu ChenPascal André
Jun 5, 2013·Materials Letters·Oliva M Primera-PedrozoZikri Arslan
May 4, 2010·Advanced Materials·Andrés Guerrero-MartínezLuis M Liz-Marzán
Oct 21, 2013·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Anurag Gautam, Frank C J M van Veggel
Jun 17, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Quanqin DaiWilliam W Yu
Dec 8, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Subramanian Tamil SelvanNikhil R Jana
Oct 28, 2014·Nano Letters·Eline M HutterDaniël Vanmaekelbergh

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