"Spontaneous spatial alignment of polymer cylindrical nanodomains on silicon gratings"
Deepak Sundrani and S.J. Sibener, Macromolecules 35 8531-8539 (2002)
 

Description:

Fabrication of macroscopic domains of periodic nanoscale structures using self-organizing systems has garnered significant attention because of the simplicity and low cost of the method. Ultrathin diblock copolymer films, in particular, are promising candidates for bottom-up nanotemplates in hybrid organic-inorganic electronic, optical, and magnetic devices. These systems self-assemble into microphase separated domains with a length scale tunable through the heart of the nanoscale (10-100 nm); however, without further constraint, the domains have no preferred orientation and form a disordered “fingerprint” structure.  Using a combination of top down fabrication to direct the bottom up fabrication of the self-assembly, these polymer films of nanoscale features can be ordered over hundreds of microns.  The distances between the polymer-based structures in this image are only 50 nanometers in diameter. With further modifications, such structures could possibly be used to create next-generation electronics or ultrahigh density data storage devices.

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