• 文献标题:   Graphene/Ferroelectric (Ge-Doped HfO2) Adaptable Transistors Acting as Reconfigurable Logic Gates
  • 文献类型:   Article
  • 作  者:   DRAGOMAN M, DINESCU A, DRAGOMAN D, PALADE C, TEODORESCU VS, CIUREA ML
  • 作者关键词:   graphene, ferroelectric, logical gate, intelligent transistor
  • 出版物名称:   NANOMATERIALS
  • ISSN:  
  • 通讯作者地址:  
  • 被引频次:   5
  • DOI:   10.3390/nano12020279
  • 出版年:   2022

▎ 摘  要

We present an array of 225 field-effect transistors (FETs), where each of them has a graphene monolayer channel grown on a 3-layer deposited stack of 22 nm control HfO2/5 nm Ge-HfO2 intermediate layer/8 nm tunnel HfO2/p-Si substrate. The intermediate layer is ferroelectric and acts as a floating gate. All transistors have two top gates, while the p-Si substrate is acting as a back gate. We show that these FETs are acting memtransistors, working as two-input reconfigurable logic gates with memory, the type of the logic gate depending only on the values of the applied gate voltages and the choice of a threshold current.