ORBi: Frederich Nadia - Nanopatterned monolayers of an adsorbed chromophore

Reference : Nanopatterned monolayers of an adsorbed chromophore


	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Chemistry
	To cite this reference:	http://hdl.handle.net/2268/9218

Title :	Nanopatterned monolayers of an adsorbed chromophore
Language :	English
Author, co-author :	Frederich, Nadia [Université catholique de Louvain > > > >]
	Duwez, Anne-Sophie [Université de Liège - ULg > Département de chimie (sciences) > Nano-chimie et systèmes moléculaires >]
	Nysten, Bernard [Université catholique de Louvain > > > >]
	Muls, Benoit [Université catholique de Louvain > > > >]
	Hofkens, Johan [Katholieke Universiteit Leuven - KUL > > > >]
	Jonas, Alain M [Université catholique de Louvain > > > >]
	Habib Jiwan, Jean-Louis [Université catholique de Louvain > > >]
Publication date :	7-Jul-2008
Journal title :	Nanotechnology
Publisher :	Institute of Physics
Volume :	19
Pages :	335303
Audience :	International
ISSN :	0957-4484
e-ISSN :	1361-6528
Keywords :	[en] patterned surfaces ; nanolithography
Abstract :	[en] A simple lift-off process was developed to rapidly fabricate nanopatterned photofunctional surfaces. Dye molecules of a perylene derivative (PDID) were adsorbed irreversibly on clean silicon through the holes of an electron-beam lithographied polymer mask. The subsequent removal of the mask in a proper solvent results in PDID nanosized regions of width as small as 30 nm for stripes and of diameter as small as 120 nm for dots. Numerical analyses of atomic force microscopy and laser-scanning confocal microscopy images show that the dye molecules are confined to the regions defined by the lithographic process, with the integrated fluorescence intensity being essentially proportional to the size of the nanofeatures. This demonstrates that a simple organic lift-off process compatible with clean-room technology, and not involving any chemical step, is able to produce photofunctional nanopatterned surfaces, even though the dye is not chemically bonded to the silicon surface.
Target :	Researchers
Permalink :	http://hdl.handle.net/2268/9218
Other URL :	http://stacks.iop.org/Nano/19/335303

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