Controlled recrystallization from the melt 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, Roland Fischer, Luca Beverina, Mario Caironi, Roland Resel

*Corresponding author for this work

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Recrystallization from the melt of the n-type BTBT derivative 2-dectyl-7-phenyl-[1]benzothieno[3,2-b][1]benzothiophene S,S,S',S'-tetraoxide (Ph-BTBTOx 2-10) reveals a defined crystal structure of the molecule. It leads to the formation of alternating nano-segregated layers consisting of parallelly stacked aromatic units and alkyl units. This polymorph appears to be the thermodynamic stable phase. Charge carrier mobility measurements indicate an electron mobility of 4*10 −6 cm 2 V −1 s −1 for this phase.

Original languageEnglish
Article number126255
JournalJournal of Crystal Growth
Publication statusPublished - 15 Oct 2021

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Materials Chemistry
  • Inorganic Chemistry

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