Random styrenic copolymers with pendant pyrene moieties: Synthesis and applications in organic field-effect transistor memory

Fei Jan Chung, Hsin Yu Liu, Bo Yi Jiang, Guan Yu He, Shi Hao Wang, Wen Chung Wu, Cheng Liang Liu

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Three random copolymers comprised pendant styrene and 4-(1-pyrenyl)-styrene (PyS) moieties in different molar ratios (21.4:1 (P1), 3.9:1 (P2), and 1.4:1 (P3)) were synthesized and employed as charge storage polymeric electret for nonvolatile organic field-effect transistor (OFET) memory application. The impact of varying the molar ratio in side-chain electron-donating pyrene moieties on the thermal, optical, photophysical, electrochemical, and electrical properties of the resulting pendant copolymers was evaluated to establish structure-property relationship. The OFET memory with P3 electret layer exhibits a largest memory window of 41.8 V, long retention time of 104 s with memory ratio of 105, and stable reversibility of at least 100 cycles due to enhanced field-induced holes trapping ability from higher PyS composition ratio. Therefore, polymer electret with pendant functional moieties shows potential for use as trapping layer in OFET memory devices.

Original languageEnglish
Pages (from-to)910-917
Number of pages8
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume54
Issue number7
DOIs
Publication statusPublished - 2016 Apr 1

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

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