Self-Assembly of an Amphiphilic π-Conjugated Dyad into Fibers: Ultrafast and Ultrasensitive Humidity Sensor

Adv Mater. 2015 May 27;27(20):3170-4. doi: 10.1002/adma.201500940. Epub 2015 Apr 14.

Abstract

The self-assembly of an amphiphilic monomolecular electron acceptor-donor dyad into electroactive π-π stacked fibrillar structures can be triggered by irradiation with visible light. These fibers, exposing hydrophilic ethylene glycol in their external shell, show unique characteristics as resistive humidity sensors that exhibit high sensitivity and ultrafast response.

Keywords: amphimphilicity; humidity sensors; monomolecular dyad; self-assembly; supramolecular chemistry.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Electrical Equipment and Supplies*
  • Electrons
  • Ethylene Glycol / chemistry
  • Humidity*
  • Hydrophobic and Hydrophilic Interactions
  • Imides / chemistry
  • Light
  • Microscopy, Atomic Force
  • Microscopy, Electron, Scanning
  • Molecular Structure
  • Nanostructures / chemistry
  • Optical Imaging
  • Perylene / analogs & derivatives
  • Perylene / chemistry
  • Photochemical Processes
  • Silicon Dioxide
  • Solvents / chemistry
  • Time Factors
  • Water / chemistry

Substances

  • Imides
  • Solvents
  • perylenediimide
  • Water
  • Perylene
  • Silicon Dioxide
  • Ethylene Glycol