title: Conjugated Polymer Alignment: Synergisms Derived from Microfluidic Shear Design and UV Irradiation.
abstract: Solution shearing has attracted great interest for the fabrication of robust and reliable, high performance organic electronic devices, owing to applicability of the method to large area and continuous fabrication, as well as its propensity to enhance semiconductor charge transport characteristics. To date, effects of the design of the blade shear features (especially the microfluidic shear design) and the prospect of synergistically combining the shear approach with an alternate process strategy have not been investigated. Here, a generic thin film fabrication concept that enhanced conjugated polymer intermolecular alignment and aggregation, improved orientation (both nanoscale and long-range), and narrowed the π-π stacking distance is demonstrated for the first time. The impact of the design of shearing blade microfluidic channels and synergistic effects of fluid shearing design with concomitant irradiation strategies were demonstrated, enabling fabrication of polymer-based devices with requisite morphologies for a range of applications.
authors: School of Chemical and Biomolecular Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332, United States.|State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University , Shanghai 201620, People's Republic of China.
authors: Gang
authors: G
authors: Wang
authors: School of Chemical and Biomolecular Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332, United States.
authors: Ping-Hsun
authors: PH
authors: Chu
authors: School of Chemical and Biomolecular Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332, United States.
authors: Boyi
authors: B
authors: Fu
authors: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University , Shanghai 201620, People's Republic of China.
authors: Zhongyuan
authors: Z
authors: He
authors: School of Chemistry and Biochemistry, Georgia Institute of Technology , Atlanta, Georgia 30332, United States.
authors: Nabil
authors: N
authors: Kleinhenz
authors: School of Chemistry and Biochemistry, Georgia Institute of Technology , Atlanta, Georgia 30332, United States.
authors: Zhibo
authors: Z
authors: Yuan
authors: Department of Materials Science and Engineering, University of Maryland , College Park, Maryland 20742, United States.|NIST Center for Neutron Research, National Institute of Standards and Technology , 100 Bureau Dr., Gaithersburg, Maryland 20899, United States.
authors: Yimin
authors: Y
authors: Mao
authors: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University , Shanghai 201620, People's Republic of China.
authors: Hongzhi
authors: H
authors: Wang
authors: School of Chemical and Biomolecular Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332, United States.|School of Chemistry and Biochemistry, Georgia Institute of Technology , Atlanta, Georgia 30332, United States.|School of Materials Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332, United States.
authors: Elsa
authors: E
authors: Reichmanis
keywords: alignment; charge transport; conjugated polymers; microfluidic shear