Performance of a Novel Rear-Triggered 4H-SiC Photoconductive Semiconductor Switch

被引:12
作者
Feng, Zhuoyun [1 ,2 ,3 ]
Luan, Chongbiao [1 ]
Xiao, Longfei [2 ,3 ]
Li, Yangfan [2 ,3 ]
Sha, Huiru [2 ,3 ]
Sun, Xun [2 ,3 ]
Chen, Xiufang [2 ,3 ]
Xu, Xiangang [2 ,3 ]
Li, Hongtao [1 ]
机构
[1] China Acad Engn Phys, Inst Fluid Phys, Mianyang 621900, Peoples R China
[2] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
[3] Shandong Univ, Inst Novel Semicond, Jinan 250100, Peoples R China
关键词
Carrier lifetime; carrier mobility; ON-state; photoconductive semiconductor switch; SiC; simulation results; HIGH-POWER;
D O I
10.1109/TED.2022.3227889
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Radial lateral structure photoconductive switches are fabricated in this work via vanadium-doped 4H-SiC and high-purity 4H-SiC materials. The switches are triggered by 355-and 532-nm laser, and the performance of the switch is compared in the applied voltage range of 1-10 kV and laser energy range of 0.3-14 mJ. The experimental results show that the conduction current of the laser incident from the rear is larger. Simulations of the current density distribution of a 2-D cross section of the photoconductive switch provide theoretical support for this phenomenon. Additionally, the conduction current of the high-purity material is found to be higher than that of the vanadium-doped material under the same conditions.
引用
收藏
页码:627 / 632
页数:6
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