Nanowerk Spotlight - Atomic calligraphy - using MEMS to write nanoscale structures

The difficulties associated with precisely manipulating nanomaterials to turn nanoscale structures into reliable functional devices – at a reasonable cost – is one of the key challenges that needs to be overcome in mass-manufacturing nanodevices (other than computer chips, which require massive amounts of capital investment).
One of the most restricting parameters in nanofabrication is the difficulty involved with controllably patterning materials at precise locations in a repeatable manner over relatively large areas. The traditional process of randomly placing nanomaterials on a substrate typically leads to highly variable performance of the resultant functionalized devices.
Conventional lithography methods that are used in computer chip manufacturing are not only very expensive and wasteful, they also are reaching physical limitations. To overcome these issues, researchers have been developing a range of alternative, resist-free nanopatterning techniques, among them dip pen nanolithography, oxidation nanolithography, or colloidal self-assembly.
A novel microelectromechanical system (MEMS)-based mask writer has now been developed by a team of researchers at Boston University. The device allows to directly write structures at the nanoscale without the need to use photoresist, lift-off techniques or other complex and expensive approaches. The technique uses a MEMS plate with apertures drilled into it and a shutter so that one can, in effect, spray paint with atoms. With the shutter, the process can be turned on and off.

Read more here on Nanowerk: 'Atomic calligraphy - using MEMS to write nanoscale structures http://www.nanowerk.com/spotlight/spotid=31159.php

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Welcome! Nanopaprika was cooked up by Hungarian chemistry PhD student in 2007. The main idea was to create something more personal than the other nano networks already on the Internet. Community is open to everyone from post-doctorial researchers and professors to students everywhere.

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Publications by A. Paszternák:

The potential use of cellophane test strips for the quick determination of food colours

pH and CO2 Sensing by Curcumin-Coloured Cellophane Test Strip

Polymeric Honeycombs Decorated by Nickel Nanoparticles

Directed Deposition of Nickel Nanoparticles Using Self-Assembled Organic Template,

Organometallic deposition of ultrasmooth nanoscale Ni film,

Zigzag-shaped nickel nanowires via organometallic template-free route

Surface analytical characterization of passive iron surface modified by alkyl-phosphonic acid layers

Atomic Force Microscopy Studies of Alkyl-Phosphonate SAMs on Mica

Amorphous iron formation due to low energy heavy ion implantation in evaporated 57Fe thin films

Surface modification of passive iron by alkylphosphonic acid layers

Formation and structure of alkylphosphonic acid layers on passive iron

Structure of the nonionic surfactant triethoxy monooctylether C8E3 adsorbed at the free water surface, as seen from surface tension measurements and Monte Carlo simulations

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