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Proceeding Paper

Properties of Thin Film-Covered GaN(0001) Surfaces †

1
Institute of Experimental Physics, University of Wrocław, pl. M. Borna 9, 50-204 Wrocław, Poland
2
Łukasiewicz Research Network–PORT Polish Center for Technology Development, ul. Stabłowicka 147, 54-066 Wrocław, Poland
Presented at the 2nd Coatings and Interfaces Web Conference, 15–31 May 2020; Available online: https://ciwc2020.sciforum.net/.
Mater. Proc. 2020, 2(1), 30; https://doi.org/10.3390/CIWC2020-06833
Published: 13 May 2020
(This article belongs to the Proceedings of 2nd Coatings and Interfaces Web Conference (CIWC-2 2020))
In this paper, the surface properties of bare and film-covered gallium nitride (GaN) of the wurtzite form, (0001) oriented are summarized. Thin films of several elements—manganese, nickel, arsenic and antimony—are formed by the physical vapour deposition method. The results of the bare surfaces as well as the thin film/GaN(0001) phase boundaries presented are characterized by X-ray and ultraviolet photoelectron spectroscopies (XPS, UPS). Basic information about electronic properties of GaN(0001) surfaces are shown. Different behaviours of thin films after post-deposition annealing in ultrahigh vacuum conditions, such as surface alloying, subsurface dissolving and desorbing, are found. The metal films form surface alloys with gallium (NiGa, MnGa), while the semi-metal (As, Sb) layers easily evaporate from the GaN(0001) surface. However, the layer in direct contact with the substrate can react with it modifying the surface properties of GaN(0001).
Keywords: GaN(0001); thin films; manganese (Mn); nickel (Ni); arsenic (As); antimony (Sb); alloying; photoelectron spectroscopy GaN(0001); thin films; manganese (Mn); nickel (Ni); arsenic (As); antimony (Sb); alloying; photoelectron spectroscopy
MDPI and ACS Style

Grodzicki, M. Properties of Thin Film-Covered GaN(0001) Surfaces. Mater. Proc. 2020, 2, 30. https://doi.org/10.3390/CIWC2020-06833

AMA Style

Grodzicki M. Properties of Thin Film-Covered GaN(0001) Surfaces. Materials Proceedings. 2020; 2(1):30. https://doi.org/10.3390/CIWC2020-06833

Chicago/Turabian Style

Grodzicki, Miłosz. 2020. "Properties of Thin Film-Covered GaN(0001) Surfaces" Materials Proceedings 2, no. 1: 30. https://doi.org/10.3390/CIWC2020-06833

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