Review of semiconductor materials and semiconductor electrical and optical properties.

22 Setembro 2023, 13:30 • José Figueiredo

Semiconductor materials. Energy Bands in Metals. Intrinsic semiconductors. Energy Bands in Semiconductors. Basic interaction processes between light and matter (e.g., semiconductors). Hole Motion in a Semiconductor. Semiconductor Statistics. Energy bands bend in an applied field. Electron and Hole Drift Velocities. Conductivity of a Semiconductor. Electron Concentration in CB. Effective Density of States at CB Edge. Electrons and holes effective mass. Mass Action Law. Fermi Energy in Intrinsic Semiconductors. Average Electron Energy in CB. Fermi Energy changes and the applied voltage. Semiconductor doping. Extrinsic Semiconductors: n-Type. Extrinsic Semiconductors: p-Type. Compensation Doping. Example of a doping process - ion implantation.  Degenerate Semiconductors. Example: Fermi levels in semiconductors. Example: Conductivity of n-Si. Direct and Indirect. Bandgap Semiconductors. Electrons in Semiconductor Crystals. Electron and hole effective mass in semiconductors. Electron’s crystal momentum. Energy (E) vs. electron’s crystal momentum (k). E-k diagrams and direct and indirect bandgap semiconductors.

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Overview of optoelectronic and introduction to light interaction with semiconductors.

18 Setembro 2023, 15:00 • José Figueiredo

Overview of optoelectronic and introduction to light interaction with semiconductors.  

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Learning objectives, teaching, and working methods. Textbooks, Evaluation methods and grading policy. Overview of optoelectronic and light interaction with semiconductors.

18 Setembro 2023, 14:00 • José Figueiredo

Learning objectives, teaching, and working methods. Textbooks, Evaluation methods and grading policy. Overview of optoelectronic and light interaction with semiconductors. 

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