This work is part of the project PSY-NANO-Si financed under contract NMP4-CT-2004-013875 by the European Community.
Surfactant-Modified Hydrophilic Nanostructured Porous Silicon for the Photosensitized Formation of Singlet Oxygen in Water†
Article first published online: 31 AUG 2007
Copyright © 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Volume 19, Issue 19, pages 2967–2972, October, 2007
How to Cite
Chirvony, V., Chyrvonaya, A., Ovejero, J., Matveeva, E., Goller, B., Kovalev, D., Huygens, A. and de Witte, P. (2007), Surfactant-Modified Hydrophilic Nanostructured Porous Silicon for the Photosensitized Formation of Singlet Oxygen in Water. Adv. Mater., 19: 2967–2972. doi: 10.1002/adma.200602891
- Issue published online: 1 OCT 2007
- Article first published online: 31 AUG 2007
- Manuscript Revised: 18 MAY 2007
- Manuscript Received: 18 DEC 2006
- European Community. Grant Number: NMP4-CT-2004-013875
- Porous silicon;
- Surface modification;
The initially hydrophobic surface of as-prepared luminescent stain-etched porous Si powder is made hydrophilic by means of the physical adsorption of different nonionic surfactants. Unsaturated linear hydrocarbons (undecylenic acid and oleyl alcohol) are found to provide the best durability of aqueous suspensions of porous Si powder, maintaining the ability of excited Si nanocrystals to interact with molecular oxygen by means of electronic energy transfer.