Dry and wet methods of silicon dioxide surface functionalisation with 3-aminopropyl trimethoxysilane: application to fullerene C60 anchoring
by A.Grégory Delafosse; Lionel Patrone; Didier Goguenheim
International Journal of Nanotechnology (IJNT), Vol. 9, No. 3/4/5/6/7, 2012

Abstract: In this work, we have studied the formation of self-assembled monolayers (SAM) of 3-aminopropyltrimethoxysilane (APTMS), chemically bound to silicon dioxide surface, prepared using a deposition from both solution and a new solvent-free process, using contact angle measurements, ellipsometry, ATR-FTIR spectroscopy and AFM imaging. In the first part, we have analysed the grafting kinetics of APTMS SAMs to control the formation of a single monolayer. Results show that with the dry deposition method about 4 h are needed to obtain a complete APTMS single monolayer. In parallel, the ordering kinetics of the SAM has been monitored by ATR-FTIR spectroscopy, showing that the monolayer reaches its final order before grafting. The possibility of using the as-obtained APTMS SAMs from wet and dry methods for anchoring functional molecular moieties is then probed with fullerene C60 molecules deposited from a solution. The grafting kinetics of C60 is studied on wetly deposited APTMS, showing a first step at about two monolayers. At last, comparative analysis of C60 grafted on either dryly or wetly deposited APTMS shows that the latter allows obtaining more homogeneous C60 layer. Such results could help in paving the way to the preparation of hybrid C60-based molecular devices on silicon through a bottom-up approach.

Online publication date: Mon, 06-Feb-2012

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Nanotechnology (IJNT):
Login with your Inderscience username and password:

    Username:        Password:         

Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com