Phenolic antioxidant-incorporated durable perovskite layers and their application for a solar cell

Suwa, Koki; Suga, Takeo; Oyaizu, Kenichi; Segawa, Hiroshi; Nishide, Hiroyuki

doi:10.1557/mrc.2020.25

Cited by 10 publications

(10 citation statements)

References 25 publications

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“…The use of stabilizers such as antioxidizing agents to regulate the detrimental chemical reactions and inhibit the photooxidation of the photoactive materials may be a promising strategy to enhance the stability of NFA OSCs, considering the successful application of several stabilizers in biology, perovskite solar cells (PSCs), and polymer:fullerene OSCs. [ 178,225–228 ] For example, the inexpensive natural antioxidants uric acid, [ 229 ] tea polyphenol, [ 230 ] and ascorbic acid [ 231 ] have been used in tin‐based PSCs to prevent the oxidation Sn 2+ , thereby resulting in significantly improved device stability. It has been found that a set of structurally varied hindered phenols can stabilize the lifetime of P3HT:PCBM devices without compromising their performance, owing to the hydrogen donation and radical scavenging properties of hindered phenols which can significantly reduce the radicals within the photoactive layer.…”

Section: Toward Superior Stability Of Nfa‐based Oscsmentioning

confidence: 99%

Recent Progress and Challenges toward Highly Stable Nonfullerene Acceptor‐Based Organic Solar Cells

Wang

Lee

Hou

et al. 2020

Advanced Energy Materials

166

163

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Organic solar cells (OSCs) based on nonfullerene acceptors (NFAs) have made significant breakthrough in their device performance, now achieving a power conversion efficiency of ≈18% for single junction devices, driven by the rapid development in their molecular design and device engineering in recent years. However, achieving long‐term stability remains a major challenge to overcome for their commercialization, due in large part to the current lack of understanding of their degradation mechanisms as well as the design rules for enhancing their stability. In this review, the recent progress in understanding the degradation mechanisms and enhancing the stability of high performance NFA‐based OSCs is a specific focus. First, an overview of the recent advances in the molecular design and device engineering of several classes of high performance NFA‐based OSCs for various targeted applications is provided, before presenting a critical review of the different degradation mechanisms identified through photochemical‐, photo‐, and morphological degradation pathways. Potential strategies to address these degradation mechanisms for further stability enhancement, from molecular design, interfacial engineering, and morphology control perspectives, are also discussed. Finally, an outlook is given highlighting the remaining key challenges toward achieving the long‐term stability of NFA‐OSCs.

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Section: Toward Superior Stability Of Nfa‐based Oscsmentioning

confidence: 99%

Recent Progress and Challenges toward Highly Stable Nonfullerene Acceptor‐Based Organic Solar Cells

Wang

Lee

Hou

et al. 2020

Advanced Energy Materials

166

163

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“…Considering that stable phenoxyl radicals and their diamagnetic precursors have a high potential in modern applications of materials chemistry (as electroactive elements [ 60 ], additives for the prevention of destruction of perovskite-derived solar cells [ 61 ], and effective hydrogen acceptors in ammonia fuel cells, where electricity is generated through oxidation of NH 3 to dinitrogen [ 62 ]), we suppose that hybrid phenoxyl–nitroxides and their precursors can be considered in the future as promising compounds for new technologies of energy storage and processing.…”

Section: Discussionmentioning

confidence: 99%

5-Aryl-2-(3,5-dialkyl-4-hydroxyphenyl)-4,4-dimethyl-4H-imidazole 3-Oxides and Their Redox Species: How Antioxidant Activity of 1-Hydroxy-2,5-dihydro-1H-imidazoles Correlates with the Stability of Hybrid Phenoxyl–Nitroxides

et al. 2020

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Cyclic nitrones of the imidazole series, containing a sterically hindered phenol group, are promising objects for studying antioxidant activity; on the other hand, they can form persistent hybrid phenoxyl–nitroxyl radicals (HPNs) upon oxidation. Here, a series of 5-aryl-4,4-dimethyl-4H-imidazole 3-oxides was obtained by condensation of aromatic 2-hydroxylaminoketones with 4-formyl-2,6-dialkylphenols followed by oxidation of the initially formed N-hydroxy derivatives. It was shown that the antioxidant activity of both 1-hydroxy-2,5-dihydroimidazoles and 4H-imidazole 3-oxides increases with a decrease in steric volume of the alkyl substituent in the phenol group, while the stability of the corresponding HPNs generated from 4H-imidazole 3-oxides reveals the opposite tendency.

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“…The all-inorganic perovskite and its tandem solar cells are recent hot research topics, which promise a superior PCE beyond 25%, in addition to their thermal stability. They are typically configurated by stacking a mixed bromide/iodide cesium lead perovskite front cell and a mixed lead–tin narrow band gap perovskite back cell. − However, their PCE has not reached the expected values. Nonetheless, successful modifications to their preparation, such as the small amount addition of dimethylammonium iodide and the two-step crystal growth, have recently been reported. − A remaining limitation is the still undeveloped hole-transporting material tuned to the wide band gap cells composed of cesium lead bromide/iodide.…”

Section: Introductionmentioning

confidence: 99%

Combination of Poly(3-butylthiophene) Hole-Transporting Layer and Butylammonium Interface Passivation to Improve an Inorganic Perovskite Solar Cell

Kojima

Xue

Oyaizu

et al. 2023

ACS Appl. Polym. Mater.

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Owing to their superior power conversion efficiencies (PCEs), all-perovskite tandem solar cells have recently attracted extensive attention, in which an inorganic CsPbI2Br perovskite with a wide band gap is configurated as the front photovoltaic cell. A dopant-free poly(3-butylthiophene) is an effective hole-extracting and -transporting material coated on the inorganic perovskite layer, compared with conventional poly(3-hexyl- and -octyl-thiophene)s. In addition, surface passivation of the perovskite layer using alkyl ammonium bromide, especially butyl-one, further improves the PCE, including its durability. Herein, we discussed the matching of the alkyl chain lengths for poly(3-alkylthiophene) and of the alkyl ammonium salt at the interface of the hole-extracting and passivated perovskite layers.

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Phenolic antioxidant-incorporated durable perovskite layers and their application for a solar cell

Abstract: Abstract

Cited by 10 publications

References 25 publications

Recent Progress and Challenges toward Highly Stable Nonfullerene Acceptor‐Based Organic Solar Cells

Recent Progress and Challenges toward Highly Stable Nonfullerene Acceptor‐Based Organic Solar Cells

5-Aryl-2-(3,5-dialkyl-4-hydroxyphenyl)-4,4-dimethyl-4H-imidazole 3-Oxides and Their Redox Species: How Antioxidant Activity of 1-Hydroxy-2,5-dihydro-1H-imidazoles Correlates with the Stability of Hybrid Phenoxyl–Nitroxides

Combination of Poly(3-butylthiophene) Hole-Transporting Layer and Butylammonium Interface Passivation to Improve an Inorganic Perovskite Solar Cell

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