Influence of vacancies on GaN/AlN interface characteristics

The results of the influence of point defects (vacancy with interstitial atom) on the GaN/AlN heterointerface is presented. It was ascertained that presence of Al atom vacancy in the heterointerface leads to the contacting layer atoms rearrangement. The presence of N atom vacancy does not influence on the contacting Ga and Al layers intermixing.

[1]  Y. Taniyasu,et al.  An aluminium nitride light-emitting diode with a wavelength of 210 nanometres , 2006, Nature.

[2]  H. A. Hassan,et al.  AlxGa1−xN/GaN/AlN heterostructures grown on Si(1 1 1) substrates by MBE for MSM UV photodetector applications , 2015 .

[3]  High frequency measurements on an AlN∕GaN-based intersubband detector at 1550 and 780nm , 2008 .

[4]  Jerry R. Meyer,et al.  Band parameters for III–V compound semiconductors and their alloys , 2001 .

[5]  David C. Look,et al.  On the nitrogen vacancy in GaN , 2003 .

[6]  W. R. Wadt,et al.  Ab initio effective core potentials for molecular calculations. Potentials for K to Au including the outermost core orbitals , 1985 .

[7]  W. R. Wadt,et al.  Ab initio effective core potentials for molecular calculations , 1984 .

[8]  M. Moravvej-Farshi,et al.  Ultrafast GaN/AlN modulator based on quantum dot for terabit all-optical communication , 2014 .

[9]  Roland H. Hertwig,et al.  On the parameterization of the local correlation functional. What is Becke-3-LYP? , 1997 .

[10]  M. Seel Atomic clusters and cluster models in solid state physics , 1988 .

[11]  Mark S. Gordon,et al.  General atomic and molecular electronic structure system , 1993, J. Comput. Chem..

[12]  H. Makino,et al.  Fabrication and characterization of short period AlN/GaN quantum cascade laser structures , 2004 .

[13]  Sidney Yip,et al.  Handbook of Materials Modeling , 2005 .

[14]  A. Becke Density-functional thermochemistry. III. The role of exact exchange , 1993 .

[15]  M. Frisch,et al.  Ab Initio Calculation of Vibrational Absorption and Circular Dichroism Spectra Using Density Functional Force Fields , 1994 .