title: Toward mass producible ordered bulk heterojunction organic photovoltaic devices.
abstract: A strategy to fabricate nanostructured poly(3-hexylthiophene) (P3HT) films for organic photovoltaic (OPV) cells by a direct transfer method from a reusable soft replica mold is presented. The flexible polyfluoropolyether (PFPE) replica mold allows low-pressure and low- temperature process condition for the successful transfer of nanostructured P3HT films onto PEDOT/PSS-coated ITO substrates. To reduce the fabrication cost of masters in large area, we employed well-ordered anodic aluminum oxide (AAO) as a template. Also, we provide a method to fabricate reversed nanostructures by exploiting the self-replication of replica molds. The concept of the transfer method in low temperature with a flexible and reusable replica mold obtained from an AAO template will be a firm foundation for a low-cost fabrication process of ordered OPVs.
authors.affiliation: The National Creative Research Initiative Center for Intelligent Hybrids, The WCU Program of Chemical Convergence for Energy and Environment, School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-744, Korea.
authors.forename: Taeyong
authors.initials: T
authors.lastname: Kim
authors.forename: Hyunsik
authors.initials: H
authors.lastname: Yoon
authors.forename: Hyung-Jun
authors.initials: HJ
authors.lastname: Song
authors.forename: Niko
authors.initials: N
authors.lastname: Haberkorn
authors.forename: Younghyun
authors.initials: Y
authors.lastname: Cho
authors.forename: Seung Hyun
authors.initials: SH
authors.lastname: Sung
authors.forename: Chang Hee
authors.initials: CH
authors.lastname: Lee
authors.forename: Kookheon
authors.initials: K
authors.lastname: Char
authors.forename: Patrick
authors.initials: P
authors.lastname: Theato
mesh_terms: D000537:Aluminum Oxide / Q000737:chemistry; D004566:Electrodes; D004867:Equipment Design; D008422:Materials Testing; D049329:Nanostructures / Q000737:chemistry*; D010777:Photochemistry; D013876:Thiophenes / Q000737:chemistry*
chemical_list: D013876:Thiophenes; C507295:poly(3-hexylthiophene); D000537:Aluminum Oxide