Equivalent Circuit Model of InAlAs/InGaAs/InP Heterostructure Metal-Semiconductor-Metal Photodetectors(Lasers, Quantum Electronics)

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概要

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• One-dimentional equivalent circuit model of a heterostructure InAlAs/InGaAs/InP metal-semiconductor-metal photodetector is discussed. In this photodetector, InGaAs is used as an optical absorption layer and the InAlAs is used for Schottky barrier enhanement The measured S_<11> parameter deviates from equi-resistance lines on the Smith chart, indicating the equivalent circuit is different from the conventional equivalent circuit using a series resistance, a depletion region capacitance and a depletion region resistance. The difference is due to band discontinuity at the heterojunctions, and we propose a equivalent circuit taking account of the band discontinuity. The band discontinuity is expressed by parallel combination of a resistance and a capacitance. The measured S_<11> parameter can be fitted well with the calculated S_<11> parameter from the proposed equivalent circuit, and we can successfully extract the device parameters from the fitted curve.

• 社団法人電子情報通信学会の論文
• 2003-11-01

著者

• IIYAMA Koichi

  Department of Electrical and Computer Engineering, Faculty of Engineering, Kanazwa University

• Iiyama K

  Graduate School Of Natural Science And Technology Kanazawa University

• TAKAMIYA Saburo

  Graduate School of Natural Science and Technology, Kanazawa University

• ASHIDA Junya

  Graduate School of Natural Science and Technology, Kanazawa University

• TAKEMOTO Akira

  Mitsubishi Electric Corporation

• Ashida Junya

  Graduate School Of Natural Science And Technology Kanazawa University

• Takemoto Akira

  Hf & Optical Semiconductor Division Mitsubishi Electric Corporation

• Takamiya S

  Graduate School Of Natural Science And Technology Kanazawa University

• Takamiya S

  Kanazawa Univ. Ishikawa Jpn

• Takamiya Saburo

  The Department Of Electrical And Computer Engineering Faculty Of Engineering Kanazawa University

• Takamiya Saburo

  Graduate School Of Natural Science And Technology Division Of Electrical Engineering And Computer Sc

• Iiyama Koichi

  Department Of Electrical And Electronic Engineering Faculty Of Engineering Kanazawa University

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