Stability of non-fullerene acceptor-based organic solar cells: chemical and physical properties at the interfaces and active layer

Organic solar cells (OSCs) have improved power conversion efficiency (PCE); however, their stability remains challenging. This study evaluates the chemical stability and performance of non-fullerene acceptor-based OSCs (NFA-OSCs) using a blend of Poly[(2,6-(4,8-bis(5-(2-ethylhexyl-3-fluoro)thiophen-...

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Main Authors: Ian C Flores, Yenny L Casallas-Moreno, Ángel Sacramento, Magali Ramírez-Como, Marlene Camacho-Reynoso, Víctor Cabrera, Yuriy Kudriavtsev, Carlos Rivera-Rodríguez, Luis M Reséndiz
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Language:English
Published: IOP Publishing 2024-01-01
Series:Materials Research Express
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Online Access:https://doi.org/10.1088/2053-1591/ad9c1a
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author Ian C Flores
Yenny L Casallas-Moreno
Ángel Sacramento
Magali Ramírez-Como
Marlene Camacho-Reynoso
Víctor Cabrera
Yuriy Kudriavtsev
Carlos Rivera-Rodríguez
Luis M Reséndiz
author_facet Ian C Flores
Yenny L Casallas-Moreno
Ángel Sacramento
Magali Ramírez-Como
Marlene Camacho-Reynoso
Víctor Cabrera
Yuriy Kudriavtsev
Carlos Rivera-Rodríguez
Luis M Reséndiz
author_sort Ian C Flores
collection DOAJ
description Organic solar cells (OSCs) have improved power conversion efficiency (PCE); however, their stability remains challenging. This study evaluates the chemical stability and performance of non-fullerene acceptor-based OSCs (NFA-OSCs) using a blend of Poly[(2,6-(4,8-bis(5-(2-ethylhexyl-3-fluoro)thiophen-2-yl)-benzo[1,2-b:4,5-b’]dithiophene))-alt-(5,5-(1’,3’-di-2-thienyl-5’,7’-bis(2-ethylhexyl)benzo[1’,2’-c:4’,5’-c’]dithiophene-4,8-dione)] (PM6) and 2,2’-((2Z,2’Z)-((12,13-bis(2-ethylhexyl)-3,9-diundecyl-12,13-dihydro-[1,2,5]thiadiazolo[3,4-e]thieno[2’,3’‘:4’,5’]thieno[2’,3’:4,5]pyrrolo[3,2-g]thieno[2’,3’:4,5]thieno[3,2-b]indole-2,10-diyl)bis(methanylylidene))bis(5,6-dichloro-3-oxo-2,3-dihydro-1H-indene-2,1-diylidene))dimalononitrile (Y7). Inverted organic solar cells (iOSCs) were examined using indium tin oxide (ITO) as the cathode, N,N’-Bis(N,N-dimethylpropan-1-amine oxide)perylene-3,4,9,10-tetracarboxylic diimide (PDINO) as the electron transport layer (ETL), PM6:Y7 as the active layer, molybdenum trioxide (MoO _3 ) as the hole transport layer (HTL), and silver (Ag) as the anode. Over 270 days, without voltage application, NFA-iOSCs were exposed to ambient conditions, room temperature (RT) of 19.4 ± 0.4 °C and a relative humidity (RH) of 50 ± 5%, and monitored using time-of-flight secondary ion mass spectroscopy (TOF-SIMS), x-ray photoelectron spectroscopy (XPS), ultraviolet–visible spectroscopy (UV–vis), and Raman spectroscopy. The results showed that the active layer maintained stability with minimal degradation with or without protective layers (Ag and MoO _3 ). The TOF-SIMS and XPS analyses confirmed that oxygen did not diffuse into the layers where it was initially absent, thereby ensuring chemical stability. Raman spectroscopy results supported these findings, showing stable vibrational modes over time. This study highlights the degradation mechanisms of NFA-OSCs and the importance of protective layers in extending the device lifetime, contributing to the durability and commercial viability of OSCs, and advancing sustainable solar energy technologies.
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spelling doaj-art-fed25ce239644bb28f44f4981821d2df2024-12-17T10:32:59ZengIOP PublishingMaterials Research Express2053-15912024-01-01111212510310.1088/2053-1591/ad9c1aStability of non-fullerene acceptor-based organic solar cells: chemical and physical properties at the interfaces and active layerIan C Flores0Yenny L Casallas-Moreno1https://orcid.org/0000-0001-7998-2067Ángel Sacramento2https://orcid.org/0000-0001-5207-3154Magali Ramírez-Como3https://orcid.org/0000-0002-9313-8337Marlene Camacho-Reynoso4Víctor Cabrera5https://orcid.org/0000-0002-8997-2695Yuriy Kudriavtsev6Carlos Rivera-Rodríguez7Luis M Reséndiz8https://orcid.org/0000-0002-6272-9003Instituto Politécnico Nacional , SEPI, Unidad Profesional Interdisciplinaria en Ingeniería y Tecnologías Avanzadas, Av. IPN No. 2580, 07340 Ciudad de México, MexicoInstituto Politécnico Nacional , SEPI, Unidad Profesional Interdisciplinaria en Ingeniería y Tecnologías Avanzadas, Av. IPN No. 2580, 07340 Ciudad de México, MexicoSección de Electrónica del Estado Sólido, Departamento de Ingeniería Eléctrica, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional , Av. Instituto Politécnico Nacional 2508, 07360 Ciudad de México, MexicoInstituto Politécnico Nacional , SEPI, Unidad Profesional Interdisciplinaria en Ingeniería y Tecnologías Avanzadas, Av. IPN No. 2580, 07340 Ciudad de México, MexicoDoctorado en Nanociencias y Nanotecnología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional , Av. IPN 2508, Col. San Pedro Zacatenco, 07360 Ciudad de México, MexicoInstituto Politécnico Nacional , SEPI, Unidad Profesional Interdisciplinaria en Ingeniería y Tecnologías Avanzadas, Av. IPN No. 2580, 07340 Ciudad de México, MexicoSección de Electrónica del Estado Sólido, Departamento de Ingeniería Eléctrica, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional , Av. Instituto Politécnico Nacional 2508, 07360 Ciudad de México, MexicoDepartamento de Estudios del Ambiente, Instituto Nacional de Investigaciones Nucleares (ININ) , Carretera México-Toluca s/n, 52750, La Marquesa, Ocoyoacac, Estado de México, MexicoInstituto Politécnico Nacional , SEPI, Unidad Profesional Interdisciplinaria en Ingeniería y Tecnologías Avanzadas, Av. IPN No. 2580, 07340 Ciudad de México, MexicoOrganic solar cells (OSCs) have improved power conversion efficiency (PCE); however, their stability remains challenging. This study evaluates the chemical stability and performance of non-fullerene acceptor-based OSCs (NFA-OSCs) using a blend of Poly[(2,6-(4,8-bis(5-(2-ethylhexyl-3-fluoro)thiophen-2-yl)-benzo[1,2-b:4,5-b’]dithiophene))-alt-(5,5-(1’,3’-di-2-thienyl-5’,7’-bis(2-ethylhexyl)benzo[1’,2’-c:4’,5’-c’]dithiophene-4,8-dione)] (PM6) and 2,2’-((2Z,2’Z)-((12,13-bis(2-ethylhexyl)-3,9-diundecyl-12,13-dihydro-[1,2,5]thiadiazolo[3,4-e]thieno[2’,3’‘:4’,5’]thieno[2’,3’:4,5]pyrrolo[3,2-g]thieno[2’,3’:4,5]thieno[3,2-b]indole-2,10-diyl)bis(methanylylidene))bis(5,6-dichloro-3-oxo-2,3-dihydro-1H-indene-2,1-diylidene))dimalononitrile (Y7). Inverted organic solar cells (iOSCs) were examined using indium tin oxide (ITO) as the cathode, N,N’-Bis(N,N-dimethylpropan-1-amine oxide)perylene-3,4,9,10-tetracarboxylic diimide (PDINO) as the electron transport layer (ETL), PM6:Y7 as the active layer, molybdenum trioxide (MoO _3 ) as the hole transport layer (HTL), and silver (Ag) as the anode. Over 270 days, without voltage application, NFA-iOSCs were exposed to ambient conditions, room temperature (RT) of 19.4 ± 0.4 °C and a relative humidity (RH) of 50 ± 5%, and monitored using time-of-flight secondary ion mass spectroscopy (TOF-SIMS), x-ray photoelectron spectroscopy (XPS), ultraviolet–visible spectroscopy (UV–vis), and Raman spectroscopy. The results showed that the active layer maintained stability with minimal degradation with or without protective layers (Ag and MoO _3 ). The TOF-SIMS and XPS analyses confirmed that oxygen did not diffuse into the layers where it was initially absent, thereby ensuring chemical stability. Raman spectroscopy results supported these findings, showing stable vibrational modes over time. This study highlights the degradation mechanisms of NFA-OSCs and the importance of protective layers in extending the device lifetime, contributing to the durability and commercial viability of OSCs, and advancing sustainable solar energy technologies.https://doi.org/10.1088/2053-1591/ad9c1anon-fullerene acceptor stabilityinverted organic solar cells (iOSC)PM6:Y7 active layer degradationTOF-SIMSXPS depth profiling
spellingShingle Ian C Flores
Yenny L Casallas-Moreno
Ángel Sacramento
Magali Ramírez-Como
Marlene Camacho-Reynoso
Víctor Cabrera
Yuriy Kudriavtsev
Carlos Rivera-Rodríguez
Luis M Reséndiz
Stability of non-fullerene acceptor-based organic solar cells: chemical and physical properties at the interfaces and active layer
Materials Research Express
non-fullerene acceptor stability
inverted organic solar cells (iOSC)
PM6:Y7 active layer degradation
TOF-SIMS
XPS depth profiling
title Stability of non-fullerene acceptor-based organic solar cells: chemical and physical properties at the interfaces and active layer
title_full Stability of non-fullerene acceptor-based organic solar cells: chemical and physical properties at the interfaces and active layer
title_fullStr Stability of non-fullerene acceptor-based organic solar cells: chemical and physical properties at the interfaces and active layer
title_full_unstemmed Stability of non-fullerene acceptor-based organic solar cells: chemical and physical properties at the interfaces and active layer
title_short Stability of non-fullerene acceptor-based organic solar cells: chemical and physical properties at the interfaces and active layer
title_sort stability of non fullerene acceptor based organic solar cells chemical and physical properties at the interfaces and active layer
topic non-fullerene acceptor stability
inverted organic solar cells (iOSC)
PM6:Y7 active layer degradation
TOF-SIMS
XPS depth profiling
url https://doi.org/10.1088/2053-1591/ad9c1a
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