Functionalization of silicon nanoparticles via silanization: Alkyl, halide and ester

Jing Zou; Susan M. Kauzlarich

doi:10.1007/s10876-008-0182-9

Functionalization of silicon nanoparticles via silanization: Alkyl, halide and ester

Jing Zou, Susan M. Kauzlarich

Chemistry

Research output: Contribution to journal › Article › peer-review

45 Scopus citations

Abstract

The feasibility of using silanization as a general tool to functionalize the surface of silicon nanoparticles (NPs) has been investigated in detail. Silicon NPs were prepared from reduction of silicon tetrachloride with sodium naphthalide. The terminal chloride on the surface of as-synthesized particles was substituted by methanol and water, in sequence. The particles were then silanized by octyltrichlorosilane, 11-bromoundecyltrichlorosilane, or 2-(carbomethoxy)ethyltrichlorosilane. These treatments yielded alkyl-, bromo-, or ester-termini on NP surfaces, respectively. The NPs were characterized by TEM, NMR, FTIR, UV-Vis, and PL spectroscopy. Changes of termination groups brought various functionalities to the NPs, without loss of the photophysics of the original NPs.

Original language	English (US)
Pages (from-to)	341-355
Number of pages	15
Journal	Journal of Cluster Science
Volume	19
Issue number	2
DOIs	https://doi.org/10.1007/s10876-008-0182-9
State	Published - Jun 2008

Keywords

Photoluminescence
Semiconductor quantum dot
Si QD
Si quantum dots
Silanization
Silicon nanoparticles

ASJC Scopus subject areas

Inorganic Chemistry

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10.1007/s10876-008-0182-9

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abstract = "The feasibility of using silanization as a general tool to functionalize the surface of silicon nanoparticles (NPs) has been investigated in detail. Silicon NPs were prepared from reduction of silicon tetrachloride with sodium naphthalide. The terminal chloride on the surface of as-synthesized particles was substituted by methanol and water, in sequence. The particles were then silanized by octyltrichlorosilane, 11-bromoundecyltrichlorosilane, or 2-(carbomethoxy)ethyltrichlorosilane. These treatments yielded alkyl-, bromo-, or ester-termini on NP surfaces, respectively. The NPs were characterized by TEM, NMR, FTIR, UV-Vis, and PL spectroscopy. Changes of termination groups brought various functionalities to the NPs, without loss of the photophysics of the original NPs.",

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AU - Zou, Jing

AU - Kauzlarich, Susan M.

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N2 - The feasibility of using silanization as a general tool to functionalize the surface of silicon nanoparticles (NPs) has been investigated in detail. Silicon NPs were prepared from reduction of silicon tetrachloride with sodium naphthalide. The terminal chloride on the surface of as-synthesized particles was substituted by methanol and water, in sequence. The particles were then silanized by octyltrichlorosilane, 11-bromoundecyltrichlorosilane, or 2-(carbomethoxy)ethyltrichlorosilane. These treatments yielded alkyl-, bromo-, or ester-termini on NP surfaces, respectively. The NPs were characterized by TEM, NMR, FTIR, UV-Vis, and PL spectroscopy. Changes of termination groups brought various functionalities to the NPs, without loss of the photophysics of the original NPs.

AB - The feasibility of using silanization as a general tool to functionalize the surface of silicon nanoparticles (NPs) has been investigated in detail. Silicon NPs were prepared from reduction of silicon tetrachloride with sodium naphthalide. The terminal chloride on the surface of as-synthesized particles was substituted by methanol and water, in sequence. The particles were then silanized by octyltrichlorosilane, 11-bromoundecyltrichlorosilane, or 2-(carbomethoxy)ethyltrichlorosilane. These treatments yielded alkyl-, bromo-, or ester-termini on NP surfaces, respectively. The NPs were characterized by TEM, NMR, FTIR, UV-Vis, and PL spectroscopy. Changes of termination groups brought various functionalities to the NPs, without loss of the photophysics of the original NPs.

KW - Photoluminescence

KW - Semiconductor quantum dot

KW - Si QD

KW - Si quantum dots

KW - Silanization

KW - Silicon nanoparticles

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Functionalization of silicon nanoparticles via silanization: Alkyl, halide and ester

Abstract

Keywords

ASJC Scopus subject areas

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