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Anna University · Regulation 2021

PH 3254 Physics for Electronics Engineering question papers

PH3254 Physics for Electronics Engineering previous year question papers from Anna University (Regulation 2021), with the full syllabus. Read online or download the PDF.

Second semester · Core · L T P C: 3 0 0 3

Question papers

Syllabus

  1. Unit 1: Crystallography9 hours

    Crystal structures: Crystal lattice · basis · unit cell and lattice parameters · crystal systems and Bravais lattices · Structure and packing fractions of SC, BCC, FCC, diamond cubic, NaCL, ZnS structures · crystal planes, directions and Miller indices · distance between successive planes · linear and planar densities · crystalline and noncrystalline materials · Example use of Miller indices: wafer surface orientation · wafer flats and notches · pattern alignment · imperfections in crystals

  2. Unit 2: Electrical and Magnetic Properties of Materials9 hours

    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

  3. Unit 3: Semiconductors and Transport Physics9 hours

    Intrinsic Semiconductors · Energy band diagram · direct and indirect band gap semiconductors · Carrier concentration in intrinsic semiconductors · 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

  4. Unit 4: Optical Properties of Materials9 hours

    Classification of optical materials · Optical processes in semiconductors: optical absorption and emission, charge injection and recombination, optical absorption, loss and gain · Optical processes in quantum wells · Optoelectronic devices: light detectors and 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

  5. Unit 5: Nano Devices9 hours

    Density of states for solids · Significance between Fermi energy and volume of the material · Quantum confinement · Quantum structures · Density of states for quantum wells, wires and 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