RT Journal Article
T1 Resonant nano-dimer metasurface for ultra-thin a-Si:H solar cells
A1 Hamdy Mohamed Elshorbagy, Mahmoud
A1 Sánchez Ordoñez, Pablo A.
A1 Cuadrado Conde, Alexander
A1 Alda, Javier
A1 Esteban Martínez, Óscar
AB Low-cost hydrogenated amorphous silicon solar cells (a-Si:H) can perform better and be more competitive by including nanostructures. An optimized nano-dimer structure embedded in close contact with the back electrode of an aSi:H ultra-thin solar cells can enhance the deliverable short-circuit current up to 27.5 %. This enhancement is the result of an increase in the absorption at the active layer, that is the product of an efficient scattering from the nanostructure. From our calculations, the nano-dimer structure must be made out of a high-index of refraction material, like GaP. The evaluation of the scattering and absorption cross section of the structure supports the calculated enhancement in short-circuit current, that is always accompanied by a decrease in the total reflectance of the cell, which is reduced by about 50 %.
PB Nature publishing group
SN 2045-2322
YR 2021
FD 2021-03-30
LK https://hdl.handle.net/20.500.14352/8028
UL https://hdl.handle.net/20.500.14352/8028
LA eng
NO Received: 09 November 2020 ; Accepted: 16 March 2021 ; Published: 30 March 2021
NO Ministerio de Ciencia e Innovación (MICINN)/FEDER
NO Comunidad de Madrid/FEDER
DS Docta Complutense
RD 4 oct 2025