Articles producció científica> Enginyeria Electrònica, Elèctrica i Automàtica

Shelf lifetime analysis of organic solar cells combining frequency and time resolved techniques

  • Identification data

    Identifier: imarina:9232632
    Authors:
    Amelenan Torimtubun, Alfonsina AbatMendez, MariaSanchez, Jose GPallares, JosepPalomares, EmilioMarsal, Lluis F
    Abstract:
    The device operational lifetime and the understanding of the degradation pathways are critical steps for inverted organic solar cells (iOSCs) to enter the energy market. In this work, a combined study of impedance spectroscopy (IS) and photovoltage/photocurrent transient (TPV/TPC) techniques was employed to analyze the degradation of PTB7-Th:PC70BM-based iOSCs in accordance with the ISOS-D1 protocol under ambient conditions without encapsulation. Both techniques provide real information on how devices with different electron transport layers (PFN, TiOx, and ZnO) were degraded, affecting the stability of the active layer. We found that the main cause of degradation is the formation of interface traps in the dark and upon air exposure. The increase of trap density in the active layer upon degradation was revealed by TPV. The change in interface trap density due to the interfacial defect over the shelf-lifetime was further confirmed by the data from IS measurements. Last but not least, modelling dark current-voltage (J-V) using the IS data as well as the morphological changes of each ETL verified our hypothesis.
  • Others:

    Author, as appears in the article.: Amelenan Torimtubun, Alfonsina Abat; Mendez, Maria; Sanchez, Jose G; Pallares, Josep; Palomares, Emilio; Marsal, Lluis F
    Department: Enginyeria Electrònica, Elèctrica i Automàtica
    URV's Author/s: Marsal Garví, Luis Francisco / MÉNDEZ MÁLAGA, MARIA / Pallarès Marzal, Josep / SANCHEZ LÓPEZ, JOSÉ GUADALUPE / Torimtubun, Alfonsina Abat Amelenan
    Project code: Grant agreement No. 713679
    Keywords: Zinc oxide Transport layer Titanium compounds Time resolved technique Stability Recombination Polymer Photo-voltage Performance Organic solar cells Operational lifetime Nongeminate Lifetime analysis Inverted organic solar cells Impedance spectroscopy Ii-vi semiconductors High-efficiency Energy markets Electron transport properties Dynamics Degradation pathways Degradation mechanisms Defect density Critical steps Active layer
    Abstract: The device operational lifetime and the understanding of the degradation pathways are critical steps for inverted organic solar cells (iOSCs) to enter the energy market. In this work, a combined study of impedance spectroscopy (IS) and photovoltage/photocurrent transient (TPV/TPC) techniques was employed to analyze the degradation of PTB7-Th:PC70BM-based iOSCs in accordance with the ISOS-D1 protocol under ambient conditions without encapsulation. Both techniques provide real information on how devices with different electron transport layers (PFN, TiOx, and ZnO) were degraded, affecting the stability of the active layer. We found that the main cause of degradation is the formation of interface traps in the dark and upon air exposure. The increase of trap density in the active layer upon degradation was revealed by TPV. The change in interface trap density due to the interfacial defect over the shelf-lifetime was further confirmed by the data from IS measurements. Last but not least, modelling dark current-voltage (J-V) using the IS data as well as the morphological changes of each ETL verified our hypothesis.
    Thematic Areas: Renewable energy, sustainability and the environment Materials science, multidisciplinary Fuel technology Energy engineering and power technology Energy & fuels Chemistry, physical
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author's mail: alfonsina.abat@estudiants.urv.cat alfonsina.abat@estudiants.urv.cat josep.pallares@urv.cat lluis.marsal@urv.cat
    Author identifier: 0000-0001-8012-4772 0000-0001-8012-4772 0000-0001-7221-5383 0000-0002-5976-1408
    Record's date: 2024-10-12
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source: https://pubs.rsc.org/en/content/articlelanding/2021/se/d1se01107c
    Funding program: Marie Skłodowska-Curie Actions - European Union's Horizon 2020 research and innovation programme
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Sustainable Energy & Fuels. 5 (24): 6498-6508
    APA: Amelenan Torimtubun, Alfonsina Abat; Mendez, Maria; Sanchez, Jose G; Pallares, Josep; Palomares, Emilio; Marsal, Lluis F (2021). Shelf lifetime analysis of organic solar cells combining frequency and time resolved techniques. Sustainable Energy & Fuels, 5(24), 6498-6508. DOI: 10.1039/d1se01107c
    Acronym: MFP
    Article's DOI: 10.1039/d1se01107c
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2021
    Funding program action: Martí i Franquès COFUND Doctoral Programme
    Publication Type: Journal Publications
  • Keywords:

    Chemistry, Physical,Energy & Fuels,Energy Engineering and Power Technology,Fuel Technology,Materials Science, Multidisciplinary,Renewable Energy, Sustainability and the Environment
    Zinc oxide
    Transport layer
    Titanium compounds
    Time resolved technique
    Stability
    Recombination
    Polymer
    Photo-voltage
    Performance
    Organic solar cells
    Operational lifetime
    Nongeminate
    Lifetime analysis
    Inverted organic solar cells
    Impedance spectroscopy
    Ii-vi semiconductors
    High-efficiency
    Energy markets
    Electron transport properties
    Dynamics
    Degradation pathways
    Degradation mechanisms
    Defect density
    Critical steps
    Active layer
    Renewable energy, sustainability and the environment
    Materials science, multidisciplinary
    Fuel technology
    Energy engineering and power technology
    Energy & fuels
    Chemistry, physical
  • Documents:

  • Cerca a google

    Search to google scholar