4 results for “Afonso Ravasco”

Research ArticleOpen accessIn the author namesOptoelectronic Characterisation of Silicon and CIGS Photovoltaic Solar CellsRicardo A. Marques Lameirinhas, Afonso Ravasco, Catarina Pinho Correia Valério Bernardo, João Paulo N. TorresThroughout these years, many materials have been subjected to tests and experiments, creating several photovoltaic technologies and generations. In this article, some of these generations are compared, namely silicon and Copper Indium Gallium di-Selenide (CIGS), in order to characterize both materials in an optoelectronic way. Using a 2D solar cell PIN model using COMSOL software, both materials are tested, obtaining … …American Journal of Engineering and Applied Sciences, Vol. 17, Issue 1 · 30 Jan 2024 · 4,984 accessesView PDF Cite

Review ArticleOpen accessIn the author namesWearable Photovoltaic Applications as Energy Sources for Everyday DevicesAfonso da Silva Ravasco, Joao Paulo N. Torres, Ricardo LameirinhasSolar technology since its first implementation for energy production has evolved in numerous directions to become part of a normal reality in future energy systems. The people’s energetic consumption changed as well. In the present days, people use portable devices more than ever, such as mobile phones and laptops and to power these portable devices, batteries are used. But what … …American Journal of Engineering and Applied Sciences, Vol. 14, Issue 2 · 25 Jun 2021 · 7,468 accessesView PDF Cite