Articles producció científica> Enginyeria Electrònica, Elèctrica i Automàtica

Understanding the role of interfacial layers in the photostability of PM6:Y7-based organic solar cells under different degradation conditions

  • Datos identificativos

    Identificador: imarina:9326075
    Autores:
    Ramirez-Como, MagalyMoustafa, EnasSamir, MohamedTorimtubun, Alfonsina Abat AmelenanSanchez, Jose GPallares, JosepMarsal, Lluis F
    Resumen:
    Organic solar cells (OSCs) have reached an efficiency near 20%; however, their low long-term stability is the main limitation to their industrialization. In this work, we investigated the degradation of bulk heterojunction non-fullerene solar cells (NFA-OSCs) based on PM6:Y7 with an efficiency of 17.5%. The degradation analysis was carried out following the established ISOS-D-1 protocol under different degradation conditions: N-2 atmosphere (H2O < 0.1 ppm and O-2 < 0.1 ppm) and encapsulated devices and non-encapsulated devices exposed to ambient conditions (60 & PLUSMN; 5% relative humidity). The evolution of the current density-voltage (J-V) and impedance spectroscopy (IS) measurements were used to analyse the degradation process during 1000 h and its relationship with physical mechanisms. The degradation of encapsulated and non-encapsulated devices is mainly caused by the drop in the open circuit voltage (V-OC). For devices exposed to the N-2 atmosphere, the fill factor (FF) was the most affected parameter. The dependence of short circuit current density (J(SC)) versus light intensity study reveals that the efficiency of non-encapsulated devices decreases faster due to a higher bimolecular recombination degree. The devices under a N-2 atmosphere and those encapsulated showed T-80 lifetimes of 1000 h and 336 h, respectively, whereas the non-encapsulated devices have a short T-80 lifetime of less than 24 h. The analysis of the efficiency decay was used to identify the different degradation mechanisms (by diffused environmental water or oxygen or by intrinsic polymer chemical reactions) under different conditions. The degradation origin of the active layer and interlayers was investigated through impedance spectroscopy measurements.
  • Otros:

    Autor según el artículo: Ramirez-Como, Magaly; Moustafa, Enas; Samir, Mohamed; Torimtubun, Alfonsina Abat Amelenan; Sanchez, Jose G; Pallares, Josep; Marsal, Lluis F
    Departamento: Enginyeria Electrònica, Elèctrica i Automàtica
    Autor/es de la URV: Marsal Garví, Luis Francisco / Pallarès Marzal, Josep / SANCHEZ LÓPEZ, JOSÉ GUADALUPE / Torimtubun, Alfonsina Abat Amelenan
    Palabras clave: Zno Transport Stability Origin Mechanisms Impedance spectroscopy High-performance High-efficiency Fabrication Enhancement
    Resumen: Organic solar cells (OSCs) have reached an efficiency near 20%; however, their low long-term stability is the main limitation to their industrialization. In this work, we investigated the degradation of bulk heterojunction non-fullerene solar cells (NFA-OSCs) based on PM6:Y7 with an efficiency of 17.5%. The degradation analysis was carried out following the established ISOS-D-1 protocol under different degradation conditions: N-2 atmosphere (H2O < 0.1 ppm and O-2 < 0.1 ppm) and encapsulated devices and non-encapsulated devices exposed to ambient conditions (60 & PLUSMN; 5% relative humidity). The evolution of the current density-voltage (J-V) and impedance spectroscopy (IS) measurements were used to analyse the degradation process during 1000 h and its relationship with physical mechanisms. The degradation of encapsulated and non-encapsulated devices is mainly caused by the drop in the open circuit voltage (V-OC). For devices exposed to the N-2 atmosphere, the fill factor (FF) was the most affected parameter. The dependence of short circuit current density (J(SC)) versus light intensity study reveals that the efficiency of non-encapsulated devices decreases faster due to a higher bimolecular recombination degree. The devices under a N-2 atmosphere and those encapsulated showed T-80 lifetimes of 1000 h and 336 h, respectively, whereas the non-encapsulated devices have a short T-80 lifetime of less than 24 h. The analysis of the efficiency decay was used to identify the different degradation mechanisms (by diffused environmental water or oxygen or by intrinsic polymer chemical reactions) under different conditions. The degradation origin of the active layer and interlayers was investigated through impedance spectroscopy measurements.
    Áreas temáticas: Renewable energy, sustainability and the environment Materials science, multidisciplinary Fuel technology Energy engineering and power technology Energy & fuels Chemistry, physical
    Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
    Direcció de correo del autor: alfonsina.abat@estudiants.urv.cat alfonsina.abat@estudiants.urv.cat josep.pallares@urv.cat lluis.marsal@urv.cat
    Identificador del autor: 0000-0001-8012-4772 0000-0001-8012-4772 0000-0001-7221-5383 0000-0002-5976-1408
    Fecha de alta del registro: 2024-10-12
    Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
    URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referencia al articulo segun fuente origial: Sustainable Energy & Fuels. 7 (16): 3883-3892
    Referencia de l'ítem segons les normes APA: Ramirez-Como, Magaly; Moustafa, Enas; Samir, Mohamed; Torimtubun, Alfonsina Abat Amelenan; Sanchez, Jose G; Pallares, Josep; Marsal, Lluis F (2023). Understanding the role of interfacial layers in the photostability of PM6:Y7-based organic solar cells under different degradation conditions. Sustainable Energy & Fuels, 7(16), 3883-3892. DOI: 10.1039/d3se00703k
    Entidad: Universitat Rovira i Virgili
    Año de publicación de la revista: 2023
    Tipo de publicación: Journal Publications
  • Palabras clave:

    Chemistry, Physical,Energy & Fuels,Energy Engineering and Power Technology,Fuel Technology,Materials Science, Multidisciplinary,Renewable Energy, Sustainability and the Environment
    Zno
    Transport
    Stability
    Origin
    Mechanisms
    Impedance spectroscopy
    High-performance
    High-efficiency
    Fabrication
    Enhancement
    Renewable energy, sustainability and the environment
    Materials science, multidisciplinary
    Fuel technology
    Energy engineering and power technology
    Energy & fuels
    Chemistry, physical
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