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Feasibility of enhancing the thermoelectric power factor in GaN_xAs_(1-x)

机译:增强GaN_xAs_(1-x)中的热电功率因数的可行性

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摘要

This study was motivated by the possibility of using N resonant levels interacting with the GaAs conduction band, in GaN_xAs_(1-x) (0 < x < 2.5%), to enhance the density of states effective mass (m_d) and consequently the thermoelectric power factor (S~2,σ)-where S is the Seebeck coefficient and σ is the electrical conductivity. However, it was observed that, compared with GaAs, the power factor was reduced in spite of a small increase in the m_d. The influences of carrier passivation and dopant type, as well as the changes in the carrier scattering mechanism, which degrades the carrier mobility, are discussed.
机译:这项研究的动机是在GaN_xAs_(1-x)(0

著录项

  • 来源
    《Physical review》 |2012年第8期|085314.1-085314.7|共7页
  • 作者单位

    Materials Science Program, Department of Mechanical and Aerospace Engineering, University of California, San Diego, La Jolla, California 92093, USA;

    Department of Electrical and Computer Engineering, University of California, San Diego, La Jolla, California 92093, USA;

    Materials Science Program, Department of Mechanical and Aerospace Engineering, University of California, San Diego, La Jolla, California 92093, USA;

    Department of Electrical and Computer Engineering, University of California, San Diego, La Jolla, California 92093, USA;

    Materials Science Program, Department of Mechanical and Aerospace Engineering, University of California, San Diego, La Jolla, California 92093, USA,Department of Electrical and Computer Engineering, University of California, San Diego, La Jolla, California 92093, USA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    charge carriers: generation, recombination, lifetime, and trapping; thermoelectric and thermomagnetic effects; Ⅲ-Ⅴ semiconductors;

    机译:电荷载体:产生;重组;寿命和捕获;热电和热磁效应;Ⅲ-Ⅴ族半导体;

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