Autor segons l'article: Amelenan Torimtubun, Alfonsina Abat; Mendez, Maria; Sanchez, Jose G; Pallares, Josep; Palomares, Emilio; Marsal, Lluis F
Departament: Enginyeria Electrònica, Elèctrica i Automàtica
Autor/s de la URV: Marsal Garví, Luis Francisco / MÉNDEZ MÁLAGA, MARIA / Pallarès Marzal, Josep / SANCHEZ LÓPEZ, JOSÉ GUADALUPE / Torimtubun, Alfonsina Abat Amelenan
Codi de projecte: Grant agreement No. 713679
Paraules clau: 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
Resum: 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.
Àrees temàtiques: Renewable energy, sustainability and the environment Materials science, multidisciplinary Fuel technology Energy engineering and power technology Energy & fuels Chemistry, physical
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: alfonsina.abat@estudiants.urv.cat alfonsina.abat@estudiants.urv.cat josep.pallares@urv.cat lluis.marsal@urv.cat
Identificador de l'autor: 0000-0001-8012-4772 0000-0001-8012-4772 0000-0001-7221-5383 0000-0002-5976-1408
Data d'alta del registre: 2024-10-12
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Programa de finançament: Marie Skłodowska-Curie Actions - European Union's Horizon 2020 research and innovation programme
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Sustainable Energy & Fuels. 5 (24): 6498-6508
Referència de l'ítem segons les normes 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
Acrònim: MFP
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2021
Acció del programa de finançament: Martí i Franquès COFUND Doctoral Programme
Tipus de publicació: Journal Publications
Repositori URV