Issue 11, 2020

Dehydrocoupling – an alternative approach to functionalizing germanium nanoparticle surfaces

Abstract

Surface functionalization is an essential aspect of nanoparticle design and preparation; it can impart stability, processability, functionality, as well as tailor optoelectronic properties that facilitate future applications. Herein we report a new approach toward modifying germanium nanoparticle (GeNP) surfaces and for the first time tether alkyl chains to the NP surfaces through Si–Ge bonds. This was achieved via heteronuclear dehydrocoupling reactions involving alkylsilanes and Ge–H moieties on the NP surfaces. The resulting solution processable RR′2Si–GeNPs (R = octadecyl or PDMS; R′ = H or CH3) were characterized using FTIR, Raman, 1H-NMR, XRD, TEM, HAADF, and EELS and were found to retain the crystallinity of the parent GeNP platform.

Graphical abstract: Dehydrocoupling – an alternative approach to functionalizing germanium nanoparticle surfaces

Supplementary files

Article information

Article type
Paper
Submitted
24 Des. 2019
Accepted
04 Feb. 2020
First published
05 Feb. 2020

Nanoscale, 2020,12, 6271-6278

Dehydrocoupling – an alternative approach to functionalizing germanium nanoparticle surfaces

M. A. Hossain, M. Javadi, H. Yu, A. N. Thiessen, N. Ikpo, A. O. Oliynyk and J. G. C. Veinot, Nanoscale, 2020, 12, 6271 DOI: 10.1039/C9NR10837H

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