2026-04-18T03:28:22Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/4284512026-01-30T09:10:32Zcom_2072_1033col_2072_452950

Numerical study of sodalime and PDMS hemisphere photonic structures for radiative cooling of silicon solar cells Jaramillo Fernández, Juliana Silva-Oelker, Gerardo Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics Universitat Politècnica de Catalunya. CREMIT - Centre de Recerca de Motors i Instal·lacions Tèrmiques Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica::Cèl·lules solars Optical properties Reflection Rigorous coupled wave analysis Silicon solar cells Solar cell efficiency Solar cells This paper numerically explores the capability of an all-photonic approach to enhance radiative cooling, UV and sub-bandgap reflection, and light trapping as a path to improve solar cells efficiency. The structure is based on hemispheres and a flat surface placed on a silicon photovoltaic cell. The study considers two materials commonly used in panel covers: soda-lime glass and polydimethylsiloxane (PDMS). A numerical approach based on the rigorous coupled-wave analysis method and an electrical-thermal model predicts maximum power improvements of 18.1% and 19.7% when using soda-lime and PDMS hemispheres, respectively, as well as a cell’s temperature reduction of 4 °C, compared to a glass encapsulated solar cell. Postprint (published version) 2022-08-29 Article Jaramillo, J.; Silva-Oelker, G. Numerical study of sodalime and PDMS hemisphere photonic structures for radiative cooling of silicon solar cells. "Optics express", 29 Agost 2022, vol. 30, núm. 18, p. 32965-32977. 1094-4087 https://hdl.handle.net/2117/428451 10.1364/OE.466335 eng https://opg.optica.org/oe/fulltext.cfm?uri=oe-30-18-32965&id=495570 Open Access 13 p. application/pdf Optical Society of American (OSA)