Valence subbands profile regulation in AlGaN quantum well based on k·p theory

doi:10.1088/1402-4896/acb860

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	Valence subbands profile regulation in AlGaN quantum well based on k·p theory
	X. Wang, K. Jiang, X. Sun, Z.-H. Zhang, Y. Chen, B. Wang and D. Li
	2023
发表期刊	Physica Scripta
ISSN	00318949
卷号	98 期号:3
摘要	The profiles for the valence subbands of an AlGaN-based quantum well (QW) is investigated by considering quantum confinement effect (QCE) and strain through the k · p theory. We have found that to increase the QCE and the compressive strain would rise the relative position of the heavy hole (HH) subband to the crystal field splitting hole (CH) subband in the valence band of the QW. However, although the variation trend of the relative valance subbands position is similar, the underlying mechanisms of the modulation by the QCE and strain are not the same. In addition, we have found that if the energy level between the HH and the CH subbands is close at a certain k t point, the subband anti-crossing effect of the QW will enhance their coupling level, causing dipole moments from the conduction subbands to these valence subbands transformation between each other. These results can provide important basis for the active region design of some AlGaN-based short wavelength, high carrier injection, or monolithic integration optoelectronic devices. © 2023 IOP Publishing Ltd.
DOI	10.1088/1402-4896/acb860
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67968
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	X. Wang, K. Jiang, X. Sun, Z.-H. Zhang, Y. Chen, B. Wang and D. Li. Valence subbands profile regulation in AlGaN quantum well based on k·p theory[J]. Physica Scripta,2023,98(3).
APA	X. Wang, K. Jiang, X. Sun, Z.-H. Zhang, Y. Chen, B. Wang and D. Li.(2023).Valence subbands profile regulation in AlGaN quantum well based on k·p theory.Physica Scripta,98(3).
MLA	X. Wang, K. Jiang, X. Sun, Z.-H. Zhang, Y. Chen, B. Wang and D. Li."Valence subbands profile regulation in AlGaN quantum well based on k·p theory".Physica Scripta 98.3(2023).

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