Study of structural and electronic properties of (ZnSe ZB) m / (ZnSe WZ) n superlattices based on HSE hybrid functional

Jia Hong Lin, Xiong Tao Yang, Bing Suo Zou, Li Jie Shi*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Using first-principles method, we studied systematically the structural and electronic properties of ZB/WZ superlattices of ZnSe. The band offsets are calculated by Heyd-Scuseria-Ernzerhof (HSE) hybrid functional which can give a good prediction on the relative band positions. The band alignment at ZB/WZ interface is found to be type-II with holes localized in wurtzite region and electrons in zinc-blende region, which is suitable for optoelectronic and solar energy conversion. The origin of type-II character and the carrier localization are investigated in detail.

Original languageEnglish
Article number1950269
JournalModern Physics Letters B
Volume33
Issue number23
DOIs
Publication statusPublished - 20 Aug 2019

Keywords

  • HSE hybrid functional
  • ZnSe films
  • carrier localization
  • polytypic superlattice

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