Application of localization landscape theory and the k · p model for direct modeling of carrier transport in a type II superlattice InAs/InAsSb photoconductor system
Application of localization landscape theory and the k · p model for direct modeling of carrier transport in a type II superlattice InAs/InAsSb photoconductor system
复制标题
应用局域化景观理论和k·p模型直接模拟II型超晶格InAs/InAsSb光电导体系统中的载流子输运
DOI：
10.1063/1.5131470
复制
发表时间：
2020
影响因子：
3.2
通讯作者：
Yuh‐Renn Wu
中科院分区：
文献类型：
--
作者：
T. Tsai;K. Michalczewski;P. Martyniuk;C. Wu;Yuh‐Renn Wu
局域化景观（LL）理论被用来直接模拟载流子输运的II型超晶格（T2 SL）的InAs/InAsSb光电导体系统。由于需要考虑量子效应，经典的泊松模型和漂移扩散模型很难直接用于模拟超晶格系统中的载流子输运。利用LL理论，可以得到载流子所看到的有效量子势。将LL理论与Poisson-DD模型耦合，用有效量子势代替传统的传导势和价势，可以直接模拟T2 SL系统中的载流子输运。将该方法的计算结果与实验结果进行了比较，结果表明该方法为T2 SL的设计提供了一种有效的工具。局域化景观（LL）理论被应用于II型超晶格（T2 SL）InAs/InAsSb光电导体系统中载流子输运的直接模拟。由于需要考虑量子效应，经典的泊松模型和漂移扩散模型很难直接用于模拟超晶格系统中的载流子输运。利用LL理论，可以得到载流子所看到的有效量子势。将LL理论与Poisson-DD模型耦合，用有效量子势代替传统的传导势和价势，可以直接模拟T2 SL系统中的载流子输运。我们比较了这种方法的结果与实验结果，发现非常好的协议，这表明该方法将提供一个有效的工具，T2 SL的设计。
Localization landscape (LL) theory is applied to directly model carrier transport in a type II superlattice (T2SL) InAs/InAsSb photoconductor system. It is difficult to apply the classical Poisson and drift–diffusion (DD) model to direct modeling of carrier transport in superlattice systems because quantum effects need to be considered. With the LL theory, it is possible to obtain the effective quantum potential seen by carriers. By coupling the LL theory with the Poisson–DD model and replacing the traditional conduction and valence potentials with effective quantum potentials, it is possible to directly model carrier transport in a T2SL system. We compare the results of this approach with experimental results and find very good agreement, which indicates that this method will provide an efficient tool for the T2SL design.Localization landscape (LL) theory is applied to directly model carrier transport in a type II superlattice (T2SL) InAs/InAsSb photoconductor system. It is difficult to apply the classical Poisson and drift–diffusion (DD) model to direct modeling of carrier transport in superlattice systems because quantum effects need to be considered. With the LL theory, it is possible to obtain the effective quantum potential seen by carriers. By coupling the LL theory with the Poisson–DD model and replacing the traditional conduction and valence potentials with effective quantum potentials, it is possible to directly model carrier transport in a T2SL system. We compare the results of this approach with experimental results and find very good agreement, which indicates that this method will provide an efficient tool for the T2SL design.