18 citations · 38 across the 3 of their papers we have counts for
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cond-mat.mtrl-sci2022★ 6 cited
Fingerprints of carbon defects in vibrational spectra of gallium nitride (GaN) consider-ing the isotope effect
I. Gamov, J. L. Lyons, G. Gärtner +5
This work examines the carbon defects associated with recently reported and novel peaks of infrared (IR) absorption and Raman scattering appearing in GaN crystals at carbon ($^{12}…
cond-mat.mtrl-sci2021★ 14 cited
Photochromism and influence of point defect charge states on optical absorption in aluminum nitride (AlN)
Ivan Gamov, Carsten Hartmann, Thomas Straubinger +1
In this work, we study the absorption properties of AlN in the range of 1.5 - 5.5 eV, as well as the meta-stable change in absorption induced by ultraviolet (UV) irradiation (photo…
cond-mat.mtrl-sci2020★ 18 cited
Carbon doping of GaN: Proof of the formation of electrically active tri-carbon defects
Ivan Gamov, Eberhard Richter, Markus Weyers +10
Carbon doping is used to obtain semi-insulating GaN crystals. If the carbon doping concentration exceeds , the carbon atoms increasingly form triatomic cluster…