期刊
SOLID-STATE ELECTRONICS
卷 198, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.sse.2022.108469
关键词
NEGF; SRH recombination; Semiconductor diodes
资金
- ANR, France project ?
- [ANR-20-CE24-0004]
In this study, the Shockley-Read-Hall (SRH) generation/recombination was incorporated into Non-equilibrium Green's function (NEGF) calculations using a multiphonon relaxation model. The effects of defects on the current-voltage characteristics of GaAs p-i-n diodes and InGaAs tunnel diodes were investigated. The results demonstrate that SRH generation/recombination is responsible for approaching the theoretical ideality factors in the forward bias regime and the recombination current density shows slow variation with applied voltage in the reverse bias regime. Defects located in the center of the active region were found to be the most effective in allowing trap-assisted tunneling. Additionally, the inclusion of SRH recombination in NEGF simulations of Esaki tunnel diodes accurately predicts the realistic degradation of the peak-to-valley current ratio.
We have included Shockley-Read-Hall (SRH) generation/recombination in Non-equilibrium Green's function (NEGF) calculations via a multiphonon relaxation model. The model has been used to study how the presence of defects affects the current-voltage characteristics of GaAs p-i-n diodes, and of an InGaAs tunnel diode. Regarding p-i-n diodes, we show that SRH generation/recombination is responsible for ideality factors approaching the theoretical value of two in the forward bias regime, while in reverse bias the recombination current density varies slowly with the applied voltage. In all the considered cases, the defects located in the center of the active region proved to be the most effective in allowing trap-assisted tunneling from the valence to the conduction band. Finally, the inclusion of SRH recombination in NEGF simulations of Esaki tunnel diodes permits to predict a realistic degradation of the peak-to-valley current ratio.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据