title: Direct Photoalignment and Optical Patterning of Molecular Thin Films.
abstract: A novel strategy for direct photoalignment of molecular materials using optothermal re-orientation is introduced. Photoalignment for molecular materials such as the organic semiconductor tetracene is shown, without relying on additional photoreactive dopants or alignment layers. Patterning and polarized light emission, e.g., for polarized organic light emitting diodes is demonstrated.
authors.affiliation: Institut für Physik, Humboldt-Universität zu Berlin, Newtonstr. 15, 12489, Berlin, Germany.
authors.forename: Linus
authors.initials: L
authors.lastname: Pithan
authors.affiliation: Institut für Physik, Humboldt-Universität zu Berlin, Newtonstr. 15, 12489, Berlin, Germany.
authors.forename: Paul
authors.initials: P
authors.lastname: Beyer
authors.affiliation: Institut für Physik, Humboldt-Universität zu Berlin, Newtonstr. 15, 12489, Berlin, Germany.
authors.forename: Laura
authors.initials: L
authors.lastname: Bogula
authors.affiliation: Institut für Physik, Humboldt-Universität zu Berlin, Newtonstr. 15, 12489, Berlin, Germany.
authors.forename: Anton
authors.initials: A
authors.lastname: Zykov
authors.affiliation: Institut für Physik, Humboldt-Universität zu Berlin, Newtonstr. 15, 12489, Berlin, Germany.
authors.forename: Peter
authors.initials: P
authors.lastname: Schäfer
authors.affiliation: Diamond Light Source Ltd, Harwell Science & Innovation Campus, Didcot, Oxfordshire, OX11 0DE, UK.
authors.forename: Jonathan
authors.initials: J
authors.lastname: Rawle
authors.affiliation: Diamond Light Source Ltd, Harwell Science & Innovation Campus, Didcot, Oxfordshire, OX11 0DE, UK.
authors.forename: Chris
authors.initials: C
authors.lastname: Nicklin
authors.affiliation: Institut für Physik, Humboldt-Universität zu Berlin, Newtonstr. 15, 12489, Berlin, Germany.
authors.forename: Andreas
authors.initials: A
authors.lastname: Opitz
authors.affiliation: Institut für Physik, Humboldt-Universität zu Berlin, Newtonstr. 15, 12489, Berlin, Germany.
authors.forename: Stefan
authors.initials: S
authors.lastname: Kowarik
keywords: X-ray diffraction; direct photolithographic patterning; excitonic absorption; molecular photoalignment; organic thin film growth