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Mimicking Electrodeposition in the Gas Phase: A Programmable Concept for Selected‐Area Fabrication of Multimaterial Nanostructures
Author(s) -
Cole Jesse J.,
Lin EnChiang,
Barry Chad R.,
Jacobs Heiko O.
Publication year - 2010
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200901547
Subject(s) - materials science , nanotechnology , fabrication , nozzle , nanoparticle , substrate (aquarium) , nanostructure , phase (matter) , deposition (geology) , ambient pressure , chemical engineering , chemistry , mechanical engineering , medicine , paleontology , oceanography , alternative medicine , physics , organic chemistry , pathology , sediment , geology , engineering , biology , thermodynamics
An in situ gas‐phase process that produces charged streams of Au, Si, TiO 2 , ZnO, and Ge nanoparticles/clusters is reported together with a programmable concept for selected‐area assembly/printing of more than one material type. The gas‐phase process mimics solution electrodeposition whereby ions in the liquid phase are replaced with charged clusters in the gas phase. The pressure range in which the analogy applies is discussed and it is demonstrated that particles can be plated into pores vertically (minimum resolution 60 nm) or laterally to form low‐resistivity (48 µΩ cm) interconnects. The process is applied to the formation of multimaterial nanoparticle films and sensors. The system works at atmospheric pressure and deposits material at room temperature onto electrically biased substrate regions. The combination of pumpless operation and parallel nozzle‐free deposition provides a scalable tool for printable flexible electronics and the capability to mix and match materials.