Cold Crystallization of the Organic n-Type Small Molecule Semiconductor 2-Decyl-7-phenyl-[1]benzothieno[3,2- b][1]benzothiophene S, S, S′, S′-Tetraoxide

Wolfgang Rao Bodlos*, Sara Mattiello, Andrea Perinot, Lara Gigli, Nicola Demitri, Luca Beverina, Mario Caironi, Roland Resel

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


The asymmetric n-type Ph-BTBT-C10 derivative 2-decyl-7-phenyl-[1]benzothieno[3,2-b][1]benzothiophene S,S,S′,S′-tetraoxide is structurally investigated in the thin film regime. After film preparation by spin coating and physical vapor deposition, a rather disordered structure is observed, with a strong change of its internal degree of order upon heating. At 95 °C, a transition into a layered structure of upright standing molecules without any in-plane order appears, and at 135 °C, crystallization takes place. This phase information is combined with surface morphological studies and charge carrier mobility measurements to describe the structure and thin film transistor applicability of this molecule.

Original languageEnglish
Pages (from-to)325-332
JournalCrystal Growth & Design
Issue number1
Publication statusPublished - 24 Nov 2020

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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