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arXiv 0912.3549cond-mat.mes-hall
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具有50 GHz的fT的双栅极石墨烯FET

Dual Gate Graphene FETs with fT of 50 GHz

Yu-Ming Lin, Hsin-Ying Chiu, Keith A. Jenkins, Damon B. Farmer, Phaedon Avouris, Alberto Valdes-Garcia

摘要:

提出了一种双栅极石墨烯场效应晶体管,其通过使用静电掺杂来降低接入电阻而显示出改善的RF性能。具有2700 cm 2/Vs的载流子迁移率,50 GHz的截止频率被证明在350 nm的栅极长度的设备。该fT值是迄今为止报道的任何石墨烯晶体管的最高频率,并且在相同栅极长度下也超过了Si MOSFET,说明了石墨烯用于RF应用的潜力。

英文摘要:

A dual-gate graphene field-effect transistors is presented, which shows improved RF performance by reducing the access resistance using electrostatic doping. With a carrier mobility of 2700 cm2/Vs, a cutoff frequency of 50 GHz is demonstrated in a 350-nm gate length device. This fT value is the highest frequency reported to date for any graphene transistor, and it also exceeds that of Si MOSFETs at the same gate length, illustrating the potential of graphene for RF applications.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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