Growth, Structure, and Anisotropic Optical Properties of Difluoro-anthradithiophene Thin Films

Timo Storzer, Alexander Hinderhofer, Clemens Zeiser, Jiří Novák, Zbyněk Fišer, Valentina Belova, Berthold Reisz, Santanu Maiti, Giuliano Duva, Rawad K. Hallani, Alexander Gerlach, John E. Anthony, Frank Schreiber

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Anthradithiophene (ADT) and its functionalized derivatives have proven to be attractive for high-performance electronic devices based on small-molecule organic semiconductors. In this manuscript we investigate the structural and optical properties of thin films of difluoro-anthradithiophene (diF-ADT), an ADT derivative, grown by organic molecular beam deposition (OMBD). By grazing incidence X-ray diffraction and reciprocal space maps, we show that diF-ADT crystallizes in a thin film structure similar to the single crystal unit cell. In addition, we investigate the growth characteristics with atomic force microscopy (AFM) and show an increase of surface mound sizes with elevated substrate temperature. Optical absorption measurements reveal a clear vibronic progression in both solution and thin film spectra along with a distinct optical anisotropy related to the molecular orientation in thin films. (Figure Presented).

Original languageEnglish
Pages (from-to)21011-21017
Number of pages7
JournalJournal of Physical Chemistry C
Volume121
Issue number38
DOIs
StatePublished - Sep 28 2017

Bibliographical note

Publisher Copyright:
© 2017 American Chemical Society.

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • General Energy
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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