Using liquid and solid state NMR and photoluminescence to study the synthesis and solubility properties of amine capped silicon nanoparticles

被引：17
作者：
Giuliani, J. R.
Harley, S. J.
Carter, R. S.
Power, P. P.
Augustine, M. P.
机构：
[1] Univ Calif Davis, Dept Chem, Davis, CA 95616 USA
[2] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA
来源：
SOLID STATE NUCLEAR MAGNETIC RESONANCE | 2007年 / 32卷 / 01期
关键词：
nanoparticles; Si-29 nuclear magnetic resonance; nuclear spin relaxation; photoluminescence;
D O I：
10.1016/j.ssnmr.2007.02.006
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Water soluble silicon nanoparticles were prepared by the reaction of bromine terminated silicon nanoparticles with 3(dimethylamino)propyl lithium and characterized with liquid and solid state nuclear magnetic resonance (NMR) and photoluminescence (PL) spectroscopies. The surface site dependent Si-29 chemical shifts and the nuclear spin relaxation rates from an assortment of H-1-Si-29 heteronuclear solid state NMR experiments for the amine coated reaction product are consistent with both the H-1 and C-13 liquid state NMR results and routine transmission electron microscopy, ultra-violet/visible, and Fourier transform infrared measurements. PL was used to demonstrate the pH dependent solubility properties of the amine passivated silicon nanoparticles. (c) 2007 Elsevier Inc. All rights reserved.
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页码：1 / 10
页数：10
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