Graphene-based micro-emitters and vacuum transistors | |
Wu, Gongtao ; Wei, Xianlong | |
2016 | |
英文摘要 | The scaling down of thermionic emitters to the microscale is achieved by using microfabrication technologies and graphene working as the emitter. A graphene micro-emitters can be turned on by a voltage of several volts and its emission current exhibits a tunability of up to six orders by a modest gate. Importantly, emission performances of graphene micro-emitters are controllable and repeatable through engineering graphene dimensions by microfabrication technologies. Based on a graphene micro-emitter, a vacuum transistor with high switching performances is experimentally demonstrated. By integrating two graphene-based vacuum transistors, we achieve an ambipolar transistor with perfectly symmetric transfer characteristics centered at 0 V and an ON/OFF current ratio of 103. The ambipolar vacuum transistor shows the potential in AC applications such as frequency multipliers and rectifiers in extreme environments. ? 2016 IEEE.; EI |
语种 | 英语 |
出处 | 29th International Vacuum Nanoelectronics Conference, IVNC 2016 |
DOI标识 | 10.1109/IVNC.2016.7551451 |
内容类型 | 其他 |
源URL | [http://ir.pku.edu.cn/handle/20.500.11897/449398] |
专题 | 信息科学技术学院 |
推荐引用方式 GB/T 7714 | Wu, Gongtao,Wei, Xianlong. Graphene-based micro-emitters and vacuum transistors. 2016-01-01. |
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