論文

査読有り
2020年4月

Theoretical analysis of band structure effects on impact ionization coefficients in wide-bandgap semiconductors

APPLIED PHYSICS EXPRESS
  • Hajime Tanaka
  • ,
  • Tsunenobu Kimoto
  • ,
  • Nobuya Mori

13
4
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.35848/1882-0786/ab7f16
出版者・発行元
IOP PUBLISHING LTD

This study theoretically investigates the effects of band structure parameters, such as the bandgap, effective mass, and Brillouin zone (BZ) width, on impact ionization coefficients. A Monte-Carlo simulation considering analytical and tunable band structures reveals that the smaller BZ width significantly reduces impact ionization coefficients, and its impacts can outperform those of the bandgap. The smaller BZ width also leads to positive temperature dependence of impact ionization coefficients, which is discussed focusing on the occurrence of the Bloch oscillation. Our results show the importance of the BZ width in discussing the behavior of impact ionization coefficients.

Web of Science ® 被引用回数 : 1

リンク情報
DOI
https://doi.org/10.35848/1882-0786/ab7f16
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000523608900001&DestApp=WOS_CPL

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