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    • LEDs on HVPE grown GaN substrates: influence of macroscopic surface features 

      Wissenschaftlicher Artikel
      Rahman, SK. Shaid-Ur; Leute, Robert Anton Richard; Wang, Junjun; Meisch, Tobias; Klein, Martin; Scholz, Ferdinand; Koyama, Koji; Ishii, Miho; Takeda, Hidetoshi
      We demonstrate the strong influence of GaN substrate surface morphology on optical properties and performance of light emitting devices grown on freestanding GaN. As-grown freestanding HVPE GaN substrates show excellent ...