Fernando Diego Engels Crespo
Semiconductor Carrier Transport and Light Emission Simulation in Multi-quantum Well Structures using a Semiclassical Approach.
Rel. Carlo Ricciardi. Politecnico di Torino, Corso di laurea magistrale in Nanotechnologies For Icts (Nanotecnologie Per Le Ict), 2023
Abstract: |
In the present work, a semiclassical method for calculating carrier transport and light emis- sion in a quantum well structure was designed and tested. The method developed, involves solving self-consistently the photon emission rate of the well with the capture of carriers into the well, until the condition of thermodynamic equilibrium is achieved, this being, cap- ture rate of carriers to the well equal to electron-hole recombination. It is then necessary to account for the carrier population along all the structure, and solving the Schrodinger- Poisson equation within the quantum well area. This algorithm it is solved iteratively, and utilizes the finite element software COMSOL for both the carrier transport and solving the Schrodinger-Poisson equation in the well. The algorithm was implemented for a zincblende structure quantum well composed of In0.5Ga0.5P , with barriers composed of Al0.375Ga0.125In0.5P and it was simplified to a 1D structure, with the other two dimensions considered infinite. The work demonstrates the functionality of the model, and simulations were conducted for both single and double quantum wells (QWs). |
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Relators: | Carlo Ricciardi |
Academic year: | 2023/24 |
Publication type: | Electronic |
Number of Pages: | 65 |
Additional Information: | Tesi secretata. Fulltext non presente |
Subjects: | |
Corso di laurea: | Corso di laurea magistrale in Nanotechnologies For Icts (Nanotecnologie Per Le Ict) |
Classe di laurea: | New organization > Master science > LM-29 - ELECTRONIC ENGINEERING |
Aziende collaboratrici: | Lumileds Germany GmbH |
URI: | http://webthesis.biblio.polito.it/id/eprint/28992 |
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