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Title: | Influence of a gold seed in transparent V<sub>2</sub>O<sub>x</sub>/Ag/V<sub>2</sub>O<sub>x</sub> selective contacts for dopant-free silicon solar cells |
Author: | Nguyen, Hieu Trung Ros Costals, Eloi Tom, Thomas Bertomeu i Balagueró, Joan Asensi López, José Miguel Andreu i Batallé, Jordi Martin Garcia, Isidro Ortega Villasclaras, Pablo Rafael Garin Escriva, Moises Puigdollers i González, Joaquim Voz Sánchez, Cristóbal Alcubilla González, Ramón |
Keywords: | Cèl·lules solars Cèl·lules fotovoltaiques Silici Conductivitat elèctrica Solar cells Photovoltaic cells Silicon Electric conductivity |
Issue Date: | 2-Nov-2018 |
Publisher: | Institute of Electrical and Electronics Engineers (IEEE) |
Abstract: | Dielectric/metal/dielectric structures based on vanadium pentoxide with a thin silver interlayer have been optimized to replace traditional transparent electrodes. As would be expected, there is a trade-off in the metal thickness to achieve simultaneously high transparency and low sheet resistance. It has been demonstrated that an ultrathin gold seed prevents the tendency of silver to form clusters. This wetting effect reduces the metal thickness needed to form a continuous film, which leads to a higher averaged transmittance and very low sheet resistance. On the other hand, vanadium pentoxide on silicon forms a high quality hole-selective contact. Thus, these structures can be used as an all-in-one transparent electrode and selective contact for a new kind of heterojunction solar cells. This concept has been proved in a 13.3% efficient solar cell fabricated on n-type silicon wafers. Besides dopant-free, the complete fabrication route did not require any sputtered transparent electrode. |
Note: | Versió postprint del document publicat a: https://doi.org/10.1109/JPHOTOV.2018.2875876 |
It is part of: | IEEE Journal of Photovoltaics, 2018, vol. 9, num. 1, p. 72-77 |
URI: | http://hdl.handle.net/2445/127122 |
Related resource: | https://doi.org/10.1109/JPHOTOV.2018.2875876 |
ISSN: | 2156-3381 |
Appears in Collections: | Articles publicats en revistes (Física Aplicada) |
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