An environmentally friendly Mg<sub>2</sub>Si pn-junction photodiode

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  • マグネシウムシリサイドを用いた環境調和型赤外フォトダイオード
  • マグネシウムシリサイド オ モチイタ カンキョウ チョウワガタ セキガイ フォトダイオード

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<p>Di-magnesium Silicide, Mg2Si, is attracting much attention as a novel environmentally friendly semiconductor used in high-sensitivity and fast-response short wavelength infrared (SWIR) detectors, because its indirect bandgap energy of 061eV corresponds to the cutoff wavelength of about 2 µm, and the abundance of the constituent elements is suitable for mass consumption. In this paper, we report on the bulk single crystal growth of Mg2Si, the preparation of a high purity Mg2Si substrate and the development of a pn-junction photodiode using the thermal diffusion process. The good photoresponse of the photodiode below 2.1 µm confirms the possibility of Mg2Si as an environmentally friendly SWIR photodetector.</p>

Journal

  • Oyo Buturi

    Oyo Buturi 88 (12), 797-801, 2019-12-10

    The Japan Society of Applied Physics

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