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Evidence for an Intraband Auger Effect in InAs/InGaAlAs/InP Quantum Dot Structures

机译:InAs / InGaAlAs / InP量子点结构中带内俄歇效应的证据

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摘要

InAs quantum dots grown on InGaAlAs lattice matched to InP have been investigated for use in quantum dot infrared photodetectors. Intraband photocurrent of samples with different doping levels have been measured and with the help of a 3D effective mass calculation, the main absorption peak has been identified. Moreover, the reported results strongly suggest that an Auger process plays a fundamental role in generating the observed intraband photocurrent.
机译:已经研究了在与InP匹配的InGaAlAs晶格上生长的InAs量子点,用于量子点红外光电探测器。已测量了不同掺杂水平的样品的带内光电流,并借助3D有效质量计算,确定了主要吸收峰。此外,报道的结果强烈暗示俄歇过程在产生观察到的带内光电流中起着基本作用。

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  • 来源
  • 会议地点 Gramado(BR);Gramado(BR);Gramado(BR);Gramado(BR);Gramado(BR);Gramado(BR)
  • 作者单位

    Photonics Institute, Technische Universitaet-Wien, A-1040 Vienna, Austria;

    Departamento de Fisica, Universidade Federal de Minas Gerais, 30123-970, Belo Horizonte, Brazil;

    LabSem/CETUC, Pontificia Universidade Catolica, Rio de Janeiro, 22451-900, Brazil;

    Departamento de Fisica, Universidade Federal de Minas Gerais, 30123-970, Belo Horizonte, Brazil;

    Photonics Institute, Technische Universitaet-Wien, A-1040 Vienna, Austria;

    Institute de Fisica, Universidade Federal do Rio de Janeiro, 21945-970, Rio de Janeiro, Brazil;

    Divisao de Fisica Aplicada, Institute de Estudos Avancados, 12228-001, Sao Jose dos Campos, Brazil;

    Departamento de Fisica, Universidade Federal de Minas Gerais, 30123-970, Belo Horizonte, Brazil Divisao de Fisica Aplicada, Institute de Estudos Avancados, 12228-001, Sao Jose dos Camp;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 微电子学、集成电路(IC);
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