School of Microelectronics;
Xidian University;
The State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology;
Xi’an 710071;
China;
Department of Integrated Circuit Design;
Institute of Microelectronics Technology;
Xi’an 710071;
China;
School of Physics and Information Engineering;
Shanxi Normal University;
Taiyuan 030031;
China;
tunnel field-effect transistors(TFET); band-to-band tunneling(BTBT); on-state current; doping modulation;