Silanization effect on the photoluminescence characteristics of crystalline and amorphous silicon nanoparticles

被引：0
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作者：
Paula Caregnato
Maria Laura Dell’Arciprete
Mónica Cristina Gonzalez
机构：
[1] Universidad Nacional de la Plata,Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Facultad de Ciencias Exactas
来源：
Photochemical & Photobiological Sciences | 2013年 / 12卷
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摘要：
Silicon nanoparticles synthesized by two different methods were surface modified with 3-mercaptopropyltrimethoxysilane. The particles of ~2 nm size exhibit photoluminescence (PL) in the UV-Vis range of the spectrum. The most intense PL band at 430 nm with an emission lifetime of 1–2 ns is attributed to the presence of the surface defects Si-O-Si, generated after anchoring the organic molecule onto the interface. The excitation-emission matrix of this band is essentially independent of the technique of synthesis, crystalline structure, and size of the silicon nanoparticles.
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页码：1658 / 1665
页数：7
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