Self-assembly diketopyrrolopyrrole-based materials and polymer blend with enhanced crystal alignment and property for organic field-effect transistors

Sheng Bi, Yu Li, Zhengran He, Zhongliang Ouyang, Qinglei Guo, Chengming Jiang

Research output: Contribution to journalArticlepeer-review

66 Scopus citations

Abstract

Crystal orientation is one of the key parameters for organic field effect transistors (OFETs). Here, DPP-based material with polymer as additive was carried out to fabricate self-assembly organic crystals. By optimizing the blend ratios and concentrations of the solution, well-aligned, high quality crystals were successfully achieved. Optical microscope, scanning electron microscope (SEM) and X-ray diffraction (XRD) were used to characterize the crystals. OFET devices were made using the crystals grown under the optimal condition. Comparing with the devices made by thin films, mobility fabricated by crystals is two order of magnitude higher. We anticipate our finding will promote the development of the field.

Original languageEnglish (US)
Pages (from-to)96-99
Number of pages4
JournalOrganic Electronics
Volume65
DOIs
StatePublished - Feb 2019

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • General Chemistry
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

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