Fundamentals of Semiconductor Devices: Compound semiconductors and heterostructures скачать в хорошем качестве

Fundamentals of Semiconductor Devices: Compound semiconductors and heterostructures

Notes for this session are available at: https://drive.google.com/file/d/1aLfe... Sample questions of NPTEL's "Fundamentals of Semiconductor Devices" course related to following concepts are discussed: 1. Compound Semiconductors: III-V, II-VI, 2D semiconductors, ternary and quaternary semiconductors. 2. Vegard's Law for ternary compound semiconductors: estimation of lattice constant, and bandgap (including bowing factor). 3. Stress in epitaxial growth of compound semiconductors: Mismatch in lattice constant, compatibility in terms of crystal structure. 4. Heterostructures: Junction of two semiconducting materials of different bandgaps. Example: Quantum well in efficient LEDs. 5. Band alignment in heterostructures: Type 1 (straddling gap), type 2 (staggered gap), and type 3 (broken gap). 6. Key terms: band discontinuity, conduction band discontinuity, valence band discontinuity, built-in potential.