Influence of a gold seed in transparent V2Ox/Ag/V2Ox selective contacts for dopant-free silicon solar cells
Visualitza/Obre
10.1109/JPHOTOV.2018.2875876
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/123785
Tipus de documentArticle
Data publicació2018-11-05
Condicions d'accésAccés obert
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ProjecteDISPOSITIVOS HIBRIDOS DE SILICIO%2FCALCOGENURO DE CAPA DELGADA PARA TECNOLOGIAS FOTOVOLTAICOS SOSTENIBLES DE BAJO COSTE Y MUY ALTA EFICIENCIA (AEI-ENE2017-87671-C3-2-R)
CELULAS SOLARES CON CONTACTOS POSTERIORES BASADAS EN SUBSTRATOS DELGADOS DE SILICIO CRISTALINO (AEI-TEC2017-82305-R)
HACIA LA OBTENCION DE MULTIPLES CELULAS MONOCRISTALINAS DE SILICIO CON 20% DE EFICIENCIA Y MENOS DE 20 µM DE GROSOR A PARTIR DE UNA UNICA OBLEA. (MINECO-ENE2015-74009-JIN)
CELULAS SOLARES CON CONTACTOS POSTERIORES BASADAS EN SUBSTRATOS DELGADOS DE SILICIO CRISTALINO (AEI-TEC2017-82305-R)
HACIA LA OBTENCION DE MULTIPLES CELULAS MONOCRISTALINAS DE SILICIO CON 20% DE EFICIENCIA Y MENOS DE 20 µM DE GROSOR A PARTIR DE UNA UNICA OBLEA. (MINECO-ENE2015-74009-JIN)
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 tradeoff in the metal thickness to achieve high transparency and low sheet resistance simultaneously. It has been demonstrated that an ultra-thin 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 being dopant-free, the complete fabrication route did not require any sputtered transparent electrode.
Descripció
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CitacióNguyen, H., Ros, E., Tom, T., Bertomeu, J., Asensi, J.M., Andreu Batallé, Jordi, Martin, I., Ortega, P., Garin, M., Puigdollers, J., Voz, C., Alcubilla, R. Influence of a gold seed in transparent V2Ox/Ag/V2Ox selective contacts for dopant-free silicon solar cells. "IEEE journal of photovoltaics", 5 Novembre 2018, vol. 9, núm. 1, p. 72-77.
ISSN2156-3381
Versió de l'editorhttps://ieeexplore.ieee.org/document/8520906
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