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Surface Recombination Speed Determination and Simulations of GaAs-InGaP Solar Cells

Valerio Trinito

Surface Recombination Speed Determination and Simulations of GaAs-InGaP Solar Cells.

Rel. Federica Cappelluti. Politecnico di Torino, Corso di laurea magistrale in Nanotechnologies For Icts (Nanotecnologie Per Le Ict), 2020

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Abstract:

In this work a new method to determine the emitter-window surface recombination speed in GaAs based n-p junctions has been developed. Using this new technique, the relation between the said surface recombination speed and the emitter thickness and doping levels has been investigated experimentally by processing multiple sets of GaAs substrate solar cells. Based on the experimental results, a very first, approximated empirical model describing the surface recombination speed has been used, together with other empirical and analytical models, to run a MATLAB optimization program. This routine is based on a 1D model simulating solar cells which relies on a scattering matrix method to treat the optics inside the cell in an exact way and on the Hovel (or Shockley) model to describe the electrical behaviour of the active region. Finally, the theoretical optimized design of the cell has been grown and processed giving very good results.

Relatori: Federica Cappelluti
Anno accademico: 2020/21
Tipo di pubblicazione: Elettronica
Numero di pagine: 55
Soggetti:
Corso di laurea: Corso di laurea magistrale in Nanotechnologies For Icts (Nanotecnologie Per Le Ict)
Classe di laurea: Nuovo ordinamento > Laurea magistrale > LM-29 - INGEGNERIA ELETTRONICA
Aziende collaboratrici: Radboudumc
URI: http://webthesis.biblio.polito.it/id/eprint/15940
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