High efficiency Cu2ZnSnS4 solar cells over FTO substrates and their CZTS/CdS interface passivation via thermal evaporation of Al2O3

The fabrication of soda lime glass/fluorine-doped tin oxide (SLG/FTO) transparent substrates represents an important advance in the fabrication of tandem solar cells. In addition, possible passivation using Al2O3, which can be deposited using cheap systems, can open up the development of Cu2ZnSnS4 (...

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Detalles Bibliográficos
Autores: Ojeda Durán, Esteban, Monfil Leyva, Karim, Andrade Arvizu, Jacob, Becerril Romero, Ignacio, Sánchez González, Yudania|||0000-0002-5740-1150, Fonoll Rubio, Robert, Guc, Maxim|||0000-0002-2072-9566, Jehl Li-Kao, Zacharie, Luna Lópeza, José A., Saucedo Silva, Edgardo Ademar|||0000-0003-2123-6162
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/361227
Acceso en línea:https://hdl.handle.net/2117/361227
https://dx.doi.org/10.1039/d1tc00880c
Access Level:acceso abierto
Palabra clave:Solar cells
Cèl·lules solars
Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica::Cèl·lules solars
Descripción
Sumario:The fabrication of soda lime glass/fluorine-doped tin oxide (SLG/FTO) transparent substrates represents an important advance in the fabrication of tandem solar cells. In addition, possible passivation using Al2O3, which can be deposited using cheap systems, can open up the development of Cu2ZnSnS4 (CZTS) solar cells. In this work, we report the simultaneous use of FTO/Mo (20 nm) as a transparent substrate and Al2O3 as apassivation layer at the p–n interface in CZTS solar cells. The best devices show efficiencies of 7.7% (Voc = 677 mV) and 7.3% (Voc = 700 mV). Complete analysis, in terms of morphology, structure and electrical properties, is discussed.

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