Bistable electrical switching and electronic memory effect in a solution-processable graphene oxide-donor polymer complex

作者：Liu Gang; Zhuang Xiaodong; Chen Yu^*; Zhang Bin; Zhu Jinhui; Zhu Chun Xiang; Neoh Koon Gee; Kang En Tang

来源：Applied Physics Letters, 2009, 95(25): 253301.

DOI：10.1063/1.3276556

A solution-processable and electroactive complex of poly (N-vinylcarbazole)-derivatized graphene oxide (GO-PVK) was prepared via amidation of end-functionalized PVK, from reversible addition fragmentation chain transfer polymerization, with tolylene-2,5-diisocyanate-functionalized graphene oxide. The Al/GO-PVK/ITO device exhibits bistable electrical conductivity switching and nonvolatile rewritable memory effects. Both the OFF and ON states of the memory device are stable under a constant voltage stress of -1 V for up to 3 h, or under a pulse voltage stress of -1 V for up to 10(8) read cycles, with an ON/OFF state current ratio in excess of 10(3).

• 出版日期2009-12-21
• 单位华东理工大学