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Título : | Photon-collection improvement from laser-textured AZO front-contact in thin-film solar cells |
Autor : | Canteli, David Torres, Ignacio Fernández, Susana Santos, José Domingo Morales, Miguel Molpeceres, Carlos |
Palabras clave : | Laser texturing Silicon solar cells Transparent conductive oxides |
Fecha de publicación : | 25-sep-2024 |
Resumen : | With the objective of increasing light scattering and obtaining a higher light absorption in thin-film solar cells, we have textured aluminum-doped zinc oxide (ZnO:Al) films deposited by RF magnetron sputtering on glass substrates using a nanosecond pulsed laser working at 355 nm. The textures have been achieved by simply patterning the ZnO:Al surfaces through direct scribing, using either a linear pattern consisting of equally separated parallel grooves, or a crisscross pattern obtained by performing a second array of laser scribes perpendicular to the former. The relationship between the light scattering properties of the textured films and its morphology are discussed considering two different scattering sources: the pattern formed by the grooves that works as a diffraction grating, and a random roughness of low amplitude created during the laser process. To further characterize the textured samples, amorphous silicon solar cells were deposited onto ZnO:Al films with different textures and their spectral response and short-circuit current (Jsc) measured. An increment of 15% in Jsc compared to non-textured solar cells is achieved, with ample room for improvement. |
URI : | https://doi.org/10.1016/j.apsusc.2018.08.267 http://documenta.ciemat.es/handle/123456789/3442 |
Aparece en las colecciones: | Artículos de Energía
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