Moving beyond Molecules: Patterning Solid-State Features via Dip-Pen Nanolithography with Sol-Based Inks
- 31 January 2002
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 124 (8), 1560-1561
- https://doi.org/10.1021/ja012502y
Abstract
Herein, we described a new dip-pen nanolithography (DPN)-based method for the direct patterning of organic/inorganic composite nanostructures on silicon and oxidized silicon substrates. The approach works by the hydrolysis of metal precursors in the meniscus between an AFM tip and a surface according to the reaction 2MCln + nH2O → M2On + 2nHCl; M = Al, Si, and Sn. The inks are hybrid composites of inorganic salts with amphiphilic block copolymer surfactants. Three proof-of-concept systems involving Al2O3, SiO2, and SnO2 nanostructures on silicon and silicon oxide surfaces have been studied. Arrays of dots and lines can be written easily with control over feature size and shape on the sub-200 nm level. The structures have been characterized by atomic force microscopy, scanning electron microscopy, transmission electron microscopy, and energy-dispersive X-ray analysis. This work is important because it opens up the opportunity for using DPN to deposit solid-state materials rather than simple organic molecules onto surfaces with the resolution of an AFM without the need for a driving force other than chemisorption (e.g., applied fields).Keywords
This publication has 17 references indexed in Scilit:
- Combinatorial Templates Generated by Dip-Pen Nanolithography for the Formation of Two-Dimensional Particle ArraysAngewandte Chemie International Edition, 2001
- Orthogonal Assembly of Nanoparticle Building Blocks on Dip-Pen Nanolithographically Generated Templates of DNAAngewandte Chemie International Edition, 2001
- “Dip-Pen” Nanolithography on Semiconductor SurfacesJournal of the American Chemical Society, 2001
- Au “Ink” for AFM “Dip-Pen” NanolithographyLangmuir, 2001
- Electrochemical AFM “Dip-Pen” NanolithographyJournal of the American Chemical Society, 2001
- A Nanoplotter with Both Parallel and Serial Writing CapabilitiesScience, 2000
- Multiple Ink Nanolithography: Toward a Multiple-Pen Nano-PlotterScience, 1999
- A New Tool for Studying the in Situ Growth Processes for Self-Assembled Monolayers under Ambient ConditionsLangmuir, 1999
- "Dip-Pen" NanolithographyScience, 1999
- Generalized syntheses of large-pore mesoporous metal oxides with semicrystalline frameworksNature, 1998