Development of 4H-SiC Low-Gain Avalanche Detector

20 Jun 2023, 15:20
20m
Conference Hall (Hotel Regent Porto Montenegro)

Conference Hall

Hotel Regent Porto Montenegro

Obala bb, Tivat 85320, Montenegro
SiC

Speakers

Dr Wang Congcong (Institute of High Energy Physics of Chinese Academy of Sciences)Mr Xin Shi (Institute of High Energy Physics of Chinese Academy of Sciences)

Description

Silicon carbide (SiC) has wider bandgap, higher atomic displacement energy, saturated electron drift velocity and thermal conductivity. It has the potential to become a high time resolution detector resistant to radiation and high temperature. A 4H-SiC Low-Gain Avalanche Detector (LGAD) epitaxial structure has been designed and epitaxial growth. The epitaxial structure of 4H-SiC LGAD was P++/N+ gain/N−bulk/N buffer/N++ substrate. In this work, the 4H-SiC LGAD fast time detector (Detector name: SICAR1) was successfully fabricated through the process of photolithography, etching, magnetron sputtering and annealing. The electronic properties of operating voltage, barrier height, effective doping and dark current were analyzed.

Authors

Dr Wang Congcong (Institute of High Energy Physics of Chinese Academy of Sciences) Mr Xin Shi (Institute of High Energy Physics of Chinese Academy of Sciences)

Co-authors

Ms Keqi Wang (Liaoning university) Ms Xiyuan Zhang (Institute of High Energy Physics of Chinese Academy of Sciences) Mr Ye He (Nanjing University)

Presentation materials