Numerical Modeling of Heterojunctions Including the Thermionic Emission Mechanism at the Heterojunction Interface

Kazushige Horio, Hisayoshi Yanai

研究成果: Article

127 引用 (Scopus)

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A numerical model for heterojunctions is presented in which thermionic emission current is formulated at the heterojunction interface, in series with drift-diffusion current in the bulk. It is shown that the thermionic emission current at the heterojunction interface is regarded as a boundary condition to give a relation between quasi-Fermi levels at both sides of the interface. GaAs/AIGaAs heterojunctions are simulated as an example, and the results are compared with those obtained by a conventional diffusion model in which current transport across the heterojunction interface is not considered explicitly. It is shown that the thermionic emission mechanism at the interface is important and should be considered, particularly in isotype heterojunctions. According to the model presented here, more general numerical analyses including thermionic emission, drift, and diffusion phenomena can be achieved.

元の言語English
ページ(範囲)1093-1098
ページ数6
ジャーナルIEEE Transactions on Electron Devices
37
発行部数4
DOI
出版物ステータスPublished - 1990 4

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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