Tuning of energy dispersion properties in InAlAs digital alloys
Published in Journal of Applied Physics, 2019
Recommended citation: Zheng, J., Y. Tan, Y. Yuan, A. W. Ghosh, and J. C. Campbell. "Tuning of energy dispersion properties in InAlAs digital alloys." Journal of Applied Physics 125, no. 24 (2019): 245702. https://aip.scitation.org/doi/abs/10.1063/1.5091694
InAlAs digital alloy avalanche photodiodes (APDs) exhibit lower noise than their random alloy counterparts. The electronic dispersion properties of digital alloy materials are unique, creating minigaps in their valence band structure. In this paper, we use computational models with environment-dependent tight-binding parameters to calculate the electronic dispersion properties of InAlAs digital alloys with various stacking directions, stacking modes, and periods, which can provide guidance for optimizing the structure of InAlAs digital alloy APDs.
Recommended citation: Zheng, J., Y. Tan, Y. Yuan, A. W. Ghosh, and J. C. Campbell. “Tuning of energy dispersion properties in InAlAs digital alloys.” Journal of Applied Physics 125, no. 24 (2019): 245702.