Ambipolar transistors based on chloro-substituted tetraphenylpentacene

Ryonosuke Sato, Shohei Eda, Haruki Sugiyama, Hidehiro Uekusa, Toshiyuki Hamura, Takehiko Mori

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Thin-film transistors of halogen-substituted tetraphenylpentacenes are investigated. These compounds exhibit mainly hole transport, but the chlorine compound shows considerably higher performance than the fluorine and bromine compounds. In addition, the chlorine compound shows ambipolar properties, though the hole mobility is four times larger than the electron mobility. These compounds have basically the same crystal structures, but the remarkable halogen dependence is explained by the critical location of the LUMO levels, as well as intermolecular transfers, which sensitively change depending on the stacking geometry. In particular, hole and electron transfer exhibit different periodicity depending on the slip distance along the molecular long axis, and this is related to the appearance of the electron transport properties.

Original languageEnglish
Pages (from-to)3294-3299
Number of pages6
JournalJournal of Materials Chemistry C
Volume7
Issue number11
DOIs
Publication statusPublished - 2019
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

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