公开(公告)号：WO2014015089A2

公开(公告)日：2014-01-23

申请号：PCT/US2013050973

申请日：2013-07-18

Applicant: IBM

Inventor： JENKINS KEITH A ,  LIN YU-MING

IPC: H03B5/30

CPC classification number: H03B5/1228 ,  H01L29/1606 ,  H01L29/78684 ,  H03B5/1203 ,  H03B7/06 ,  H03B2200/0084

Abstract: A method includes providing an oscillator having a field effect transistor connected with a resonant circuit. The field effect transistor has a gate electrode coupled to a source of gate voltage, a source electrode, a drain electrode and a graphene channel disposed between the source electrode and the drain electrode and electrically connected thereto. The method further includes biasing the graphene channel via the gate electrode into a negative differential resistance region of operation to cause the oscillator to generate a frequency signal having a resonant frequency fO. There can be an additional step of varying the gate voltage so as to bias the graphene channel into the negative differential resistance region of operation and out of the negative differential resistance region of operation so as to turn on the frequency signal and to turn off the frequency signal, respectively.

Abstract translation: 一种方法包括提供具有与谐振电路连接的场效应晶体管的振荡器。 场效应晶体管具有耦合到栅极电压源的栅电极，源电极，漏电极和设置在源电极和漏电极之间并与其电连接的石墨烯通道。 该方法还包括将石墨烯通道经由栅电极偏置成负的差分电阻操作区域，以使振荡器产生具有谐振频率f0的频率信号。 可以存在改变栅极电压以便将石墨烯通道偏压到负的差分电阻区域和负的差分电阻区域的附加步骤，以便接通频率信号并且关闭频率 信号。