The theoretical direct-band-gap optical gain of Germanium nanowires

• Main Authors: Xiong, Wen, Wang, Jian-Wei, Fan, Weijun, Song, Zhigang, Tan, Chuan Seng
• 其他作者: School of Electrical and Electronic Engineering
• 格式: Article
• 語言: English
• 出版: 2020
• 主題: Engineering::Materials; Materials Science; Nanoscale Materials
• 在線閱讀: https://hdl.handle.net/10356/143726

We calculate the electronic structures of Germanium nanowires by taking the effective-mass theory. The electron and hole states at the Γ-valley are studied via the eight-band k.p theory. For the [111] L-valley, we expand the envelope wave function using Bessel functions to calculate the energies of...