Synthesis and characterization of novel push-pull oligomer based on naphthodithiophene-benzothiodiazole for OFETs application

Kai Zhang*, Ji Zhang, Xiaoqin Zhang, Gui Yu, Ricky M S WONG

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

A novel push-pull oligomeric semiconductor, ENBT based on naphthodithiophene-benzothiodiazole was successfully designed and synthesized. ENBT was fully characterized by 1H NMR, MS, thermogravimetric analysis (TGA), UV–vis spectra, and cyclic voltammetry (CV). Furthermore, ENBT-based OFETs were fabricated by solution-processed dip-coating technique and its charge transporting property was investigated. The film of ENBT exhibited a hole mobility as high as 1.4 × 10−2 cm2/(Vs) with a current on/off ratio of 106–107 after annealed at 160 °C. In order to give an insight to the transporting property of ENBT films, thin film morphologies after annealing at different temperatures were also studied by atomic force microscopy (AFM).

Original languageEnglish
Pages (from-to)641-644
Number of pages4
JournalTetrahedron Letters
DOIs
Publication statusPublished - 14 Feb 2018

Scopus Subject Areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

User-Defined Keywords

  • Atomic force microscopy
  • Charge mobility
  • Organic semiconductors
  • Solution-processed

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