Morphology and Conductivity of Self-Assembled Pyrene-Perylenetetracarboxylic Diimide Dyad

Abstract:

One perylenetetracarboxylic diimide (PDI) derivatives (PDI 1) linked with pyrene by flexible chain at the bay positions was synthesized and the molecular structure was characterized by ¹H NMR, MALDI-TOF mass spectra as well as elemental analysis. The molecular self-assembly were prepared from solution via a slow evaporation of solvent. The properties of these molecular aggregates were studied by electronic absorption and fluorescence spectra. The morphologies and structures were examined by scanning electronic microscopy (SEM) and X-ray diffraction (XRD) techniques. The conducting properties were evaluated by currentvoltage (IV) measurements. The results revealed highly ordered structure for these molecular self-assembly. The thin solid film fabricated from these molecular self-assembly show an electric conductivity as high as 4.85 × 10^-4 S cm^-1 under the ambient light, which means this compound might be used as a semiconductor in nanoelectronics.

• Periodical: Advanced Materials Research (Volume 936)
• Pages: 911-914
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.936.911
• Online since: June 2014
• Authors: Yan Shi, Xi You Li*
• Keywords: Conductivity, Morpholoy, Perylenetetracarboxy Diimides, Self-Assembly

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