Photodetectors and LEDs

This lecture covers the optoelectronics in the IT context, focusing on the optical properties of Transition Metal Dichalcogenides (TMDCs), including band structure, excitons, and band gap tuning. It also discusses the visibility of TMDC monolayers, contrast maps, band structure, and emerging photoluminescence. The lecture further explores excitons, excitonic complexes, and electrostatic control of exciton charge in TMDCs. It delves into band gap tuning with strain, alloying, and the impact of strain on the band structure. Additionally, it examines the mechanisms of photoconductivity, photonic circuit integration, and integrated photodetectors, emphasizing light absorption and photoluminescence.

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