A Graphene-Based Filament Transistor with Sub-10 mVdec(-1) Subthreshold Swing

作者：Tian, He^*; Wang, Xuefeng; Zhao, Haiming; Mi, Wentian; Yang, Yi; Chiu, Po-Wen; Ren, Tian-Ling^*

来源：Advanced Electronic Materials, 2018, 4(4): 1700608.

DOI：10.1002/aelm.201700608

• aluminum oxide
• filament transistors
• graphene
• steep slope
• subthreshold swing

There is a growing trend of developing steep slope transistors with subthreshold swing (SS) below 60 mV dec(-1). At present, there are mainly three kinds of steep slope transistors: tunneling transistor, negative capacitance transistor, and nano-electromechanical relay. Here, a new kind of steep slope transistor named "filament transistor" is proposed with SS down to sub-10 mV dec(-1). Due to the gate E-filed can penetrate through the graphene, the gate can effectively control the filament formation/rupture inside the 5 nm AlOx with very steep slope. In reverse sweep, the gate can induce the filament formation with SS down to 4.6 mV dec(-1). In forward sweep, the gate can break the filament with SS down to 12.2 mV dec(-1). Taking the advantages of nanofilament, the filament transistor holds a great potential to scaling down to 5 nm without performance changing.

• 出版日期2018-4
• 单位清华大学