Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 507769
Title Fluorinated alkyne-derived monolayers on oxide-free silicon nanowires via one-step hydrosilylation
Author(s) Nguyen, Quyen; Pujari, Sidharam P.; Wang, Bin; Wang, Zhanhua; Haick, Hossam; Zuilhof, Han; Rijn, Cees J.M. van
Source Applied Surface Science 387 (2016). - ISSN 0169-4332 - p. 1202 - 1210.
DOI http://dx.doi.org/10.1016/j.apsusc.2016.06.129
Department(s) Laboratory for Organic Chemistry
VLAG
Publication type Refereed Article in a scientific journal
Publication year 2016
Keyword(s) Fluorinated monolayers - Hydrosilylation - Oxide-free silicon - Silicon nanowires - Surface modification
Abstract

Passivation of oxide-free silicon nanowires (Si NWs) by the formation of high-quality fluorinated 1-hexadecyne-derived monolayers with varying fluorine content has been investigated. Alkyl chain monolayers (C16H30−xFx) with a varying number of fluorine substituents (x = 0, 1, 3, 9, 17) were attached onto hydrogen-terminated silicon (Si[sbnd]H) surfaces with an effective one-step hydrosilylation. This surface chemistry gives well-defined monolayers on nanowires that have a cylindrical core–shell structure, as characterized by X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FT-IR) and static contact angle (SCA) analysis. The monolayers were stable under acidic and basic conditions, as well as under extreme conditions (such as UV exposure), and provide excellent surface passivation, which opens up applications in the fields of field effect transistors, optoelectronics and especially for disease diagnosis.

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