7 documents found, page 1 of 1
Photonic-amplified QD@Host perovskite solar cells
Alexandre, Miguel; Fortunato, Elvira; Martins, Rodrigo; Mendes, Manuel J.Quantum dots-in-host (QD@Host) hetero-semiconductors have a set of properties of conspicuous interest for photovoltaic (PV) applications, such as photogeneration beyond the standard semiconductor bandgap absorption limit — enabling substantially broader exploitation of the solar spectrum. Nevertheless, a key aspect has remained thus far unexploited: coupling these features with advanced light-management techniq...
Sub-Bandgap Sensitization of Perovskite Semiconductors via Colloidal Quantum Do...
Ribeiro, Guilherme; Ferreira, G.; Menda, U.D.; Alexandre, Miguel; Brites, Maria João; Barreiros, M. Alexandra; Jana, S.; Águas, Hugo; Martins, RodrigoABSTRACT: By taking advantage of the outstanding intrinsic optoelectronic properties of perovskite-based photovoltaic materials, together with the strong near-infrared (NIR) absorption and electronic confinement in PbS quantum dots (QDs), sub-bandgap photocurrent generation is possible, opening the way for solar cell efficiencies surpassing the classical limits. The present study shows an effective methodology ...
Sub-Bandgap Sensitization of Perovskite Semiconductors via Colloidal Quantum Do...
Ribeiro, Guilherme; Ferreira, G.; Menda, U.D.; Alexandre, Miguel; Brites, Maria João; Barreiros, M. Alexandra; Jana, S.; Águas, Hugo; Martins, RodrigoABSTRACT: By taking advantage of the outstanding intrinsic optoelectronic properties of perovskite-based photovoltaic materials, together with the strong near-infrared (NIR) absorption and electronic confinement in PbS quantum dots (QDs), sub-bandgap photocurrent generation is possible, opening the way for solar cell efficiencies surpassing the classical limits. The present study shows an effective methodology ...
Copper-Arsenic-Sulfide Thin-Films from Local Raw Materials Deposited via RF Co-...
Centeno, Pedro; Alexandre, Miguel; Neves, Filipe; Fortunato, Elvira; Martins, Rodrigo; Águas, Hugo; Mendes, Manuel JoaoABSTRACT: he inexorable increase of energy demand and the efficiency bottleneck of monocrystalline silicon solar cell technology is promoting the research and development of alternative photovoltaic materials. Copper-arsenic-sulfide (CAS) compounds are still rather unexplored in the literature, yet they have been regarded as promising candidates for use as p-type absorber in solar cells, owing to their broad ra...
Copper-Arsenic-Sulfide Thin-Films from Local Raw Materials Deposited via RF Co-...
Centeno, Pedro; Alexandre, Miguel; Neves, Filipe; Fortunato, Elvira; Martins, Rodrigo; Águas, Hugo; Mendes, Manuel JoaoABSTRACT: he inexorable increase of energy demand and the efficiency bottleneck of monocrystalline silicon solar cell technology is promoting the research and development of alternative photovoltaic materials. Copper-arsenic-sulfide (CAS) compounds are still rather unexplored in the literature, yet they have been regarded as promising candidates for use as p-type absorber in solar cells, owing to their broad ra...
Photonic-Structured Perovskite Solar Cells: Detailed Optoelectronic Analysis
Haque, Sirazul; Alexandre, Miguel; Baretzky, Clemens; Rossi, Daniele; De Rossi, Francesca; Vicente, António T.; Brunetti, Francesca; Águas, HugoRecent experimental advances in perovskite solar cell (PSC) technology marked a new era for low-cost, flexible, and high-efficiency photovoltaics (PVs). In contrast, the study of the detailed physical mechanisms governing the optoelectronic properties of PSCs has not been keeping up with these breakthroughs, which have been eclipsing theoretical efforts aimed at a more in-depth understanding of this emerging PV...
Estratégias fotónicas para fotovoltaico : novos avanços para além da ótica
Mendes, Manuel Joao; Sanchez-Sobrado, O.; Haque, S.; Centeno, Pedro; Alexandre, Miguel; Ribeiro, Guilherme; Boane, J.; Mateus, T.; Mouquinho, AnaRESUMO: Estruturas fotónicas com tamanhos comparáveis aos comprimentos de onda da luz solar são as soluções preferenciais para melhorar a eficiência de dispositivos fotovoltaicos através de aprisionamento de luz. As micro-estruturas fotónicas aqui desenvolvidas operam no regime de ótica de ondas, pelo que foram construídos modelos eletromagnéticos que permitiram encontrar os parâmetros ótimos para aplicação no ...