• 文献标题:   Highly-stable write-once-read-many-times switching behaviors of 1D-1R memristive devices based on graphene quantum dot nanocomposites
  • 文献类型:   Article
  • 作  者:   SUNG S, WU C, JUNG HS, KIM TW
  • 作者关键词:  
  • 出版物名称:   SCIENTIFIC REPORTS
  • ISSN:   2045-2322
  • 通讯作者地址:   Hanyang Univ
  • 被引频次:   3
  • DOI:   10.1038/s41598-018-30538-y
  • 出版年:   2018

▎ 摘  要

One diode and one resistor (1D-1R) memristive devices based on inorganic Schottky diodes and poly(methylsilsesquioxane) (PMSSQ):graphene quantum dot (GQD) hybrid nanocomposites were fabricated to achieve stable memory characteristics. Current-voltage (I-V) curves for the Al/PMSSQ:GQDs/Al/p-Si/Al devices at room temperature exhibited write-once, read-many-times memory (WORM) characteristics with an ON/OFF ratio of as large as 10(4) resulting from the formation of a 1D-1R structure. I-V characteristics of the WORM 1D-1R device demonstrated that the memory and the diode behaviors of the 1D-1R device functioned simultaneously. The retention time of the WORM 1D-1R devices could be maintained at a value larger than 104 s under ambient conditions. The operating mechanisms of the devices were analyzed on the basis of the I-V results and with the aid of the energy band diagram.