PH-3254 Physics for Electronics Engineering
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CRYSTALLOGRAPHY
Crystal structures: Crystal lattice
basis unit cell and lattice parameters
crystal systems and Bravais lattices
Structure and packing fractions of SC, BCC, FCC
Structure and packing diamond cubic
Structure and packing NaCL
Structure and packing ZnS structures
crystal planes
directions and Miller indices
distance between successive planes
linear and planar densities
crystalline and noncrystalline materials
Miller indices: wafer surface orientation
wafer flats and notches
pattern alignment
imperfections in crystals.
ELECTRICAL AND MAGNETIC PROPERTIES OF MATERIALS
Classical free electron theory
Expression for electrical conductivity
Thermal conductivity, expression
Quantum free electron theory :Tunneling
degenerate states
Fermi Dirac statistics
Density of energy states
Electron in periodic potential
Energy bands in solids
tight binding approximation
Electron effective mass
concept of hole
Magnetic materials: Dia, para and ferromagnetic effects
paramagnetism in the conduction electrons in metals
exchange interaction and ferromagnetism
quantum interference devices
GMR devices.
SEMICONDUCTORS AND TRANSPORT PHYSICS
Intrinsic Semiconductors
Energy band diagram
direct and indirect band gap semiconductors
Carrier concentration in intrinsic semiconductors
Carrier concentration in extrinsic semiconductors
Carrier concentration in N
type & P
type semiconductors
Variation of carrier concentration with temperature
Carrier transport in Semiconductors: Drift, mobility and diffusion
Hall effect and devices
Ohmic contacts
Schottky diode.
OPTICAL PROPERTIES OF MATERIALS
Classification of optical materials
Optical processes in semiconductors optical absorption and emission
Optical processes in semiconductors charge injection
Optical processes in semiconductors recombination
Optical processes in semiconductors optical absorption
Optical processes in semiconductors loss and gain
Optical processes in quantum wells
Optoelectronic devices light detectors
Optoelectronic devices solar cells
light emitting diode
laser diode
optical processes in organic semiconductor devices
excitonic state
Electro optics and nonlinear optics: Modulators and switching devices
plasmonics.
NANO DEVICES
Density of states for solids
Significance between Fermi energy
Significance between volume of the material
Quantum confinement
Quantum structures
Density of states for quantum wells
Density of states for wires
Density of states for dots
Band gap of nanomaterials
Tunneling
Single electron phenomena
Single electron Transistor
Conductivity of metallic nanowires
Ballistic transport
Quantum resistance and conductance
Carbon nanotubes Properties and applications
Spintronic devices and applications
Optics in quantum structures
quantum well laser.