Gallium Nitride (GaN)

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Gallium Nitride (GaN)
Apr 2004 Joel Vaughn, Kendal Clark, Timur Skeini
Covalent Bond!
Bond Length (Å) Bond Length (Å)
Wurtzite Polytype Zinc-blende
1.8-2.1 1.9
Atomic hybrid orbitals sp3 sp3 Hybrids. The
top four images show the four sp3 hybrids. These
particular sp3 hybrids are combinations of 2s and
three 2p functions. The bottom shows the relative
positions of these four hybrids
superimposed. Note that in each case, the nucleus
is embedded in the minor lobe.
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  Gallium (Ga) Nitrogen (N)
Electron Configuration Electron Configuration Electron Configuration Ar 3d10 4s2 4p1 He 2s2 2p3
Stable Electron Configuration Stable Electron Configuration Stable Electron Configuration Ar 3d10 4s2 4p6 He 2s2 2p6
Valence shell orbital radii (pm) s s 105.8 53.9
Valence shell orbital radii (pm) p p 140.0 52.3
Valence shell orbital radii (pm) d d 28.5 --
Ionization Energy (Enthalpy) (kJ/mol) 1st 1st 578.8 1402.3
Ionization Energy (Enthalpy) (kJ/mol) 2nd 2nd 1979.3 2856
Electron Affinity (kJ/mol) Electron Affinity (kJ/mol) Electron Affinity (kJ/mol) 28.9 7
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Gallium Nitride (GaN)
Wurtzite polytype a3.189 c5.185
Zinc-blende structure a4.52

• Crystal Viewer (Java Applet Service)
• GaN http//jas.eng.buffalo.edu/education/solid/ge
  nUnitCell/
• GaAs http//jas.eng.buffalo.edu/education/solid/u
  nitCell/home.html