PYp224
| pYp224 | |
|---|---|
| Engineering physics Laboratory-IV | |
| Credits | 3 |
| Structure | 0-0-6 |
| Pre-requisites | PYL125 |
| Overlaps | |
pYp224 : Engineering physics Laboratory-IV
[edit]Resistivity of metals and semiconductors, band gap, charge carrier density and mobilities of semiconductor, basics of junction diode and its characteristics in solar cell configuration, study of crystal structure, dielectric constant, specific heat and superconductivity. pYS 300 Independent Study 3 Credits (0-3-0) The course details to be worked out by the faculty giving the course keeping in view the learning needs of the students. pYL 301 Vacuum Technology and Surface Science 3 Credits (3-0-0) Need of Vacuum and basic concepts: Mean free path, Particle flux; Monolayer formation, Gas Flow regimes ; Gas release from Solids: Vaporization, Thermal Desorption, Permeation, Surface diffusion, Physisorption and Chemisorption; Measurement of Pressure: Gauges, Residual Gas Analyses; Production of Vacuum: Roughing - Rotary pumps, Oil free pumps; HV & UHV - Turbomolecular pumps, Cryopumps, Getter and Sputter Ion pumps; Materials and components in vacuum; Bulk versus surface; Electronic properties of surfaces: Contact potential and work function, Surface Plasmons; Atomic motion: Surface lattice dynamics, Surface diffusion, Surface melting and chemisorption; Adsorption of atoms and molecules; Experimental techniques for surface analysis: XPS, AES, SEXAFS, TEM, SEM, STM, AFM and RHEED.