Self-assembled nanolayers of conjugated silane with π - π interlocking

Jinyue Jiang, Ocelio V. Lima, Yong Pei, Zhang Jiang, Ziguang Chen, Chichao Yu, Jin Wang, Xiao Cheng Zeng, Eric Forsythe, Li Tan

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

The packing of electronic molecules into planar structures and an ensured π - π interaction within the plane are preferred for efficient organic transistors. Thin films of organic electronics are exemplar, but the widely adopted molecular design and associated fabrication lead to limited ordering in multistack construction motifs. Here we demonstrate self-assembled nanolayers of organic molecules having potential electronic utility using an amphiphilic silane as a building block. Unlike a cross-linked (tetrahedral) configuration found in conventional siloxane networks, a linear polymer chain is produced following silane polycondensation. As a result, hydrophobic branches plus a noncovalent π - π interlocking between the molecules promote planar packing and continuous stacking along the surface normal. In contrast to conventional π - π stacking or hydrogen bonding pathways in a fibrous construct, multistacked nanolayers with coexisting π - π and herringbone interlocking can provide unmatched properties and processing convenience in molecular electronics.

Original languageEnglish (US)
Pages (from-to)3773-3780
Number of pages8
JournalACS Nano
Volume4
Issue number7
DOIs
StatePublished - Jul 27 2010

Keywords

  • conjugation
  • nanolayer
  • self-assembly
  • silane
  • π - π interlocking

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

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