Learn · Fundamentals of semiconductor devices
Lecture 49 of 62Week 10 Opto-electronic devices: Solar cells and photodetectors
Junction photodetectors
Prof. Digbijoy N. Nath · IISc Bangalore
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- Fundamentals of semiconductor devices, IISc Bangalore (at NPTEL)
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- CC BY-NC-SA, as NPTEL states it. Non-commercial use only.
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- NPTEL states: "Distributed under Creative Commons Attribution-ShareAlike / CC BY - NC - SA", beside a BY-NC-SA badge.
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All the lectures
- Introduction to semiconductors
- Introduction to energy bands
- Fundamentals of band structure
- Band structure (contd.) and Fermi-Dirac distribution
- Density of states
- Doping and intrinsic carrier concentration
- Equilibrium carrier concentration
- Temperature-dependence of carrier concentration
- High doping effects and incomplete ionization
- Carrier scattering and mobility
- Low-field and high-field transport, introduction to diffusion
- Drift-diffusion and trap statistics
- Current continuity equation
- Continuity equation (contd.) and introduction to p-n junction
- p-n junction under equilibrium
- p-n junction under equilibrium (contd.)
- p-n junction under bias
- p-n junction under bias (contd.)
- p-n junction: generation-recombination currents
- Application of p-n junctions
- Breakdown of junction and C-V profiling
- Introduction to Schottky junction
- Schottky junction under equilibrium
- Schottky junction under bias
- Introduction to transistors: BJT
- Basics of BJT
- Working of BJT
- Working of BJT (contd)
- Delays in BJT
- MOS: Introduction
- MOS: Capacitance-voltage
- Ideal MOS system: derivation of threshold voltage
- MOS C-V in more details
- MOSFET - An introduction
- Gradual Channel Approximation: Derivation of I-V characteristics
- Substrate bias effect and subthreshold conduction in MOSFET
- Short Channel Effects in MOSFET
- Introduction to compound semiconductors
- Basics of heterojunctions
- Band diagram of heterojunctions
- Heterojunctions (contd).
- Heterojunction transistors
- III-nitrides
- Solar cell basics
- Solar cell (contd.)
- Solar cell: Shockley Quiesser Limit
- Basics of photodetectors
- Photodetectors: figures of merit and types of devices
- Junction photodetectors
- Basics of recombination
- Basics of LED
- LED: light extraction and design issues
- Visible LED: photometry and colorimetry
- Transistors for power electronics
- Transistors for power electronics (contd.) & for RF electronics
- Transistors for RF (contd.) and transistors for Memory
- Basics of microelectronic fabrication
- Microelectronic fabrication (contd.)
- Summary
- Live Session 03-08-2022
- Live Session 11-03-2024
- Live Session 01-04-2025