Semiconductor Crystals - Physics Department - University College ...

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Zincblende (ZnS) Lattice View of tetrahedral coordination & 2 atom basis:Zincblende/Diamond≡ face centered cubic (fcc)lattice with a 2 atom basisColáiste na hOllscoile Corcaigh, ÉireROINN NA FISICE Department of PY4118 Physics ofUniversity College Cork, Ireland PhysicsSemiconductor Devices 2.23Wurtzite (hexagonal structure)GaN, AlN etc. (semiconductors for blue lasers)Coláiste na hOllscoile Corcaigh, ÉireROINN NA FISICE Department of PY4118 Physics ofUniversity College Cork, Ireland PhysicsSemiconductor Devices 2.2412
Wurtzite LatticeView of tetrahedral coordination& 2 atom basis.Wurtzite ≡ hexagonal closepacked (hcp) lattice,2 atom basisWhat does this mean?Coláiste na hOllscoile Corcaigh, ÉireROINN NA FISICE Department of PY4118 Physics ofUniversity College Cork, Ireland PhysicsSemiconductor Devices 2.25Materials with sp 2 Hybridization What material is made with sp 2 ?Coláiste na hOllscoile Corcaigh, ÉireROINN NA FISICE Department of PY4118 Physics ofUniversity College Cork, Ireland PhysicsSemiconductor Devices 2.2613
Page 1 and 2: Physics PY4118Physics of Semiconduc
Page 3 and 4: Hybrid Orbitals Types of Hybrid Orb
Page 5 and 6: “sp 2 ” HybridizationBF 3Hybrid
Page 7 and 8: Oxygen Atom Bonding in H 2 O2p4 sp
Page 9 and 10: Physics PY4118Physics of Semiconduc
Page 11: III-V Semiconductors3 sp 3 orbitals
Page 15 and 16: Polycrystalline SolidPolycrystal is
Page 17 and 18: Crystal StructureCrystal structure
Page 19 and 20: Crystal LatticeBravais Lattice (BL)
Page 21 and 22: Unit Cell in 2DThe smallest compone
Page 23 and 24: This is also a unit cell -it doesn
Page 25 and 26: Three common Unit Cell in 3DCrystal
Page 27 and 28: Primitive and conventional cells-hc

Semiconductor Crystals - Physics Department - University College ...

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