title: Graphene flash memory.
abstract: Graphene's single atomic layer of sp(2) carbon has recently garnered much attention for its potential use in electronic applications. Here, we report a memory application for graphene, which we call graphene flash memory (GFM). GFM has the potential to exceed the performance of current flash memory technology by utilizing the intrinsic properties of graphene, such as high density of states, high work function, and low dimensionality. To this end, we have grown large-area graphene sheets by chemical vapor deposition and integrated them into a floating gate structure. GFM displays a wide memory window of ∼6 V at significantly low program/erase voltages of ±7 V. GFM also shows a long retention time of more than 10 years at room temperature. Additionally, simulations suggest that GFM suffers very little from cell-to-cell interference, potentially enabling scaling down far beyond current state-of-the-art flash memory devices.
authors.affiliation: IBM T. J. Watson Research Center, Yorktown Heights, New York 10598, United States. ajhong@us.ibm.com
authors.forename: Augustin J
authors.initials: AJ
authors.lastname: Hong
authors.forename: Emil B
authors.initials: EB
authors.lastname: Song
authors.forename: Hyung Suk
authors.initials: HS
authors.lastname: Yu
authors.forename: Matthew J
authors.initials: MJ
authors.lastname: Allen
authors.forename: Jiyoung
authors.initials: J
authors.lastname: Kim
authors.forename: Jesse D
authors.initials: JD
authors.lastname: Fowler
authors.forename: Jonathan K
authors.initials: JK
authors.lastname: Wassei
authors.forename: Youngju
authors.initials: Y
authors.lastname: Park
authors.forename: Yong
authors.initials: Y
authors.lastname: Wang
authors.forename: Jin
authors.initials: J
authors.lastname: Zou
authors.forename: Richard B
authors.initials: RB
authors.lastname: Kaner
authors.forename: Bruce H
authors.initials: BH
authors.lastname: Weiller
authors.forename: Kang L
authors.initials: KL
authors.lastname: Wang
mesh_terms: D016248:Computer Storage Devices; D025802:Electric Capacitance; D006108:Graphite
chemical_list: D006108:Graphite