Multilevel nonvolatile flexible organic field-effect transistor memories employing polyimide electrets with different charge-transfer effects

Macromol Rapid Commun. 2014 Jun;35(11):1039-45. doi: 10.1002/marc.201400089. Epub 2014 Apr 4.

Abstract

The electrical memory characteristics of the n-channel organic field-effect transistors (OFETs) employing diverse polyimide (PI) electrets are reported. The synthesized PIs comprise identical electron donor and three different building blocks with gradually increasing electron-accepting ability. The distinct charge-transfer capabilities of these PIs result in varied type of memory behaviors from the write-one-read-many (WORM) to flash type. Finally, a prominent flexible WORM-type transistor memory is demonstrated and shows not only promising write-many-read-many (WMRM) multilevel data storage but also excellent mechanical and retention stability.

Keywords: electrets; organic memory; polyimide; transistor.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Electrochemical Techniques
  • Quantum Theory
  • Resins, Synthetic / chemical synthesis
  • Resins, Synthetic / chemistry*
  • Silicon Dioxide / chemistry
  • Transistors, Electronic*

Substances

  • Resins, Synthetic
  • polyimide resin
  • Silicon Dioxide