Patterning Thin-Layer Material of Oriented Meso- and Macroscopic Hollow Hemispheres and Its Facile Lithography

Autor:	Masahiko Yamada, Ippei Noda and
Rok vydání:	2002
Předmět:	chemistry.chemical_classification Microlens Materials science Thermoplastic Fabrication General Chemical Engineering General Chemistry Polymer Substrate (electronics) Stamping Microstructure chemistry Materials Chemistry Composite material Lithography
Zdroj:	Chemistry of Materials. 14:2348-2353
ISSN:	1520-5002 0897-4756
DOI:	10.1021/cm0116323
Popis:	Thin-layer materials of high-density ordered arrays of meso- and macropores were fabricated by self-assembly of organic-functionalized hollow hemispheres on a substrate, and low center of gravity and organic-functional groups of the hemispheres played an important role in forming these ordered arrangements. By the use of the thin-layer material as a mold, the fabrication of nanometer-sized structure extended to replica molding from studies of the self-assembly of the hemispheres. As a result, solvent-assisted cast micromolding of a thermoplastic resin afforded microlens arrays on the polymer fabricated by filling the surface of the master with a fluid polymer softened by a solvent which was subsequently evaporated. On the other hand, compression micromolding provided pore arrays in a polymer sheet, and the pores were packed together as closely as the geometry allowed in the sheet. The concave microstructures were obtained by stamping the master on a thermoplastic resin that had been thermally softened. Th...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::67aefe0c147aab113771675ac91e7a16 https://doi.org/10.1021/cm0116323 Zobrazit plný text záznamu