title: Patterned removal of molecular organic films by diffusion.
abstract: We demonstrate that "contact patterning" subtractively patterns a wide range of molecular organic films of nanoscale thickness with nanometer-scale accuracy. In "contact patterning", an elastomeric stamp with raised features is brought into contact with the organic film and subsequently removed, generating patterns by the diffusion of the film molecules into the stamp. The mechanism of material removal via diffusion is documented over spans of minutes, hours, and days and is shown to be consistently repeatable. Contact patterning provides a photolithography-free, potentially scalable approach to subtractive patterning of a wide range of molecular organic films.
authors.affiliation: Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA. cpackard@mines.edu
authors.forename: Corinne E
authors.initials: CE
authors.lastname: Packard
authors.forename: Katherine E
authors.initials: KE
authors.lastname: Aidala
authors.forename: Sulinya
authors.initials: S
authors.lastname: Ramanan
authors.forename: Vladimir
authors.initials: V
authors.lastname: Bulović