Transparency of Semi-Insulating, n-Type, and p-Type Ammonothermal GaN Substrates in the Near-Infrared, Mid-Infrared, and THz Spectral Range

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Robert Kucharski; Łukasz Janicki; Marcin Zajac; Monika Welna; Marcin Motyka; Czesław Skierbiszewski; Robert Kudrawiec;
  • Publisher: MDPI AG
  • Journal: Crystals (issn: 2073-4352)
  • Related identifiers: doi: 10.3390/cryst7070187
  • Subject: GaN | infrared spectral range | THz spectral range | free-carrier absorption | Crystallography | QD901-999

GaN substrates grown by the ammonothermal method are analyzed by Fast Fourier Transformation Spectroscopy in order to study the impact of doping (both n- and p-type) on their transparency in the near-infrared, mid-infrared, and terahertz spectral range. It is shown that... View more
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