节点文献
Observation of a Current Plateau in the Transfer Characteristics of InGaN/AlGaN/AlN/GaN Heterojunction Field Effect Transistors
【摘要】 Direct-current transfer characteristics of(In GaN)/AlGaN/AlN/GaN hetcrojunction field effect transistors(HFETs)are presented.A drain current plateau(Ids = 32.0 mA/mm) for Vgs swept from +0.7 V to-0.6 V is present in the transfer characteristics of InGaN/AlGaN/AlN/GaN HFETs.The theoretical calculation shows the coexistence of two-dimensional electron gas(2DEG) and two-dimensional hole gas(2DHG) in InGaN/AlGaN/AlN/GaN heterostructures,and the screening effect of 2DHG to the 2DEG in the conduction channel can explain this current plateau.Moreover,the current piateau shows the time-dependent behavior when IDS-VGS scans repeated are conducted.The obtained insight provides indication for the design in the fabrication of GaN-based super HFETs.
【Abstract】 Direct-current transfer characteristics of(In GaN)/AlGaN/AlN/GaN hetcrojunction field effect transistors(HFETs)are presented.A drain current plateau(Ids = 32.0 mA/mm) for Vgs swept from +0.7 V to-0.6 V is present in the transfer characteristics of InGaN/AlGaN/AlN/GaN HFETs.The theoretical calculation shows the coexistence of two-dimensional electron gas(2DEG) and two-dimensional hole gas(2DHG) in InGaN/AlGaN/AlN/GaN heterostructures,and the screening effect of 2DHG to the 2DEG in the conduction channel can explain this current plateau.Moreover,the current piateau shows the time-dependent behavior when IDS-VGS scans repeated are conducted.The obtained insight provides indication for the design in the fabrication of GaN-based super HFETs.
- 【文献出处】 Chinese Physics Letters ,中国物理快报(英文版) , 编辑部邮箱 ,2015年12期
- 【分类号】TN386
- 【下载频次】30