Memory effect in polymer brushes containing pendant carbazole groups

Yuyan Wei, Dazhi Gao, Liang Li, Songmin Shang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

11 Citations (Scopus)

Abstract

Poly(9-(2-(4-vinyl(benzyloxy)ethyl)-9H-carbazole)) (PVBEC) brushes, have been successfully prepared on the silicon surfaces via surface-initiated atom transfer radical polymerization (ATRP). Conductance switching at a voltage of about -2.1 V is observed in the memory device based on the PVBEC brushes. The fabricated device shows the good memory characteristics as the ON/OFF current ratio up to 105, and enduring 106read cycles under -1 V pulse voltages. Compared with those of the conventional Si/PVBEC/Al device fabricated by spin-coating, the switch voltage is lower and the ON/OFF current ratio is higher in the volatile Si-g-PVBEC/Al memory device.
Original languageEnglish
Pages (from-to)1385-1390
Number of pages6
JournalPolymer
Volume52
Issue number6
DOIs
Publication statusPublished - 10 Mar 2011

Keywords

  • Atom transfer radical polymerization
  • Memory effect
  • Polymer brushes

ASJC Scopus subject areas

  • Polymers and Plastics
  • Organic Chemistry

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