Balancing the efficiency, stability, and cost potential for organic solar cells via a new figure of merit

Yang, Wenyan; Wang, Wei; Wang, Yuheng; Sun, Rui; Guo, Jin; Li, Hongneng; Shi, Mumin; Guo, Jing; Wu, Yao; Wang, Tao; Lu, Guanghao; Brabec, Christoph J.; Li, Yongfang; Min, Jie

doi:10.1016/j.joule.2021.03.014

Cited by 146 publications

(149 citation statements)

References 75 publications

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“…Third, it offers positions for introducing suitable side chains, which provide appropriate solubility and tune the packing structures in the solid state. However, FRAs usually suffer from high synthetic complexity and production costs, thus hampering their large-scale synthesis and limiting the commercialization of OSCs [40][41][42][43][44] .…”

Section: Introductionmentioning

confidence: 99%

Non-fused ring acceptors for organic solar cells

Yang¹,

Wu²,

Zhou³

et al. 2022

Energy Mater

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Organic solar cells (OSCs) have experienced rapid development and achieved significant breakthroughs in power conversion efficiencies owing to the emergence of non-fullerene acceptors (NFAs) with ladder-type multiple fused ring structures. However, the high synthetic complexity and production cost of multiple fused ring NFAs hinder the commercial prospects of OSCs. In this context, the development of non-fused ring acceptors (NFRAs) with simple structures and facile synthesis has been proposed. In this mini review, we summarize the important progress in this field spanning from molecular design strategies to structure-performance relationships. Ultimately, with the aim of realizing the practical application of NFRAs in OSCs, we discuss the current challenges and future directions in terms of achieving high performance and low synthetic complexity simultaneously. These discussions provide valuable insights into the development of new NFRAs.

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Section: Introductionmentioning

confidence: 99%

Non-fused ring acceptors for organic solar cells

Yang¹,

Wu²,

Zhou³

et al. 2022

Energy Mater

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“…To deal with the rapidly growing demand for renewable energy sources, organic solar cells (OSCs) have attracted tremendous attention around the world, and have been recognized as one of the most promising candidate photovoltaic technologies, due to their specific advantages in fabricating flexible devices with low cost and light weight through simple solution processing methods. 1–5 Benefitting mainly from the innovation of organic semiconductors (OSs) and the optimization of device engineering, the past several decades have witnessed amazing progress in the OSC field, highlighting the great potential of commercial application in the foreseeable future. 6–12 To be specific, the development of novel p-type OSs (donor materials) and n-type OSs (acceptor materials) has led to sufficient light absorption with minimum energy loss.…”

Section: Introductionmentioning

confidence: 99%

Influence of altering chlorine substitution positions on the photovoltaic properties of small molecule donors in all-small-molecule organic solar cells

et al. 2022

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“…The wide practical application of organic solar cells requires further advancements in their production technology and, most importantly, increasing their operational stability. [7] It has been shown that organic semiconductor materials, both p-and n-type, have certain issues with intrinsic photostability and undergo light-induced dimerization, cross-linking, reactions with other components of the active layer or adjacent charge-transport interlayers. [8][9][10][11][12][13][14] Hence, the design of intrinsically photostable absorber materials is a crucially important task for achieving long lifetimes in organic photovoltaics.…”

Section: Introductionmentioning

confidence: 99%

Resist or Oxidize: Identifying Molecular Structure–Photostability Relationships for Conjugated Polymers Used in Organic Solar Cells

2021

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Although organic solar cells have started to demonstrate competitive power conversion efficiencies of > 18 %, their operational lifetimes remain insufficient for wide practical use and the factors influencing the photostability of absorber materials and completed devices are still not completely understood. A systematic study of two series of structurally similar [XTBT] n and [XTTBTBTT] n polymers (16 structures in total) reveals the building blocks that enable the highest material stability towards photooxidation: fluorene, silafluorene, carbazole, diketopyrrolopyrrole, and isoindigo. Furthermore, a direct correlation is evident between the electronic properties of the conjugated polymers and their reactivity towards oxygen. The structures with the lowest highest occupied molecular orbital (HOMO) energies show the highest electrochemical oxidation potentials and appear to be the most resistant towards chemical oxidation. These relationships set important guidelines for the further rational design of new absorber materials for efficient and stable organic photovoltaics.

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Balancing the efficiency, stability, and cost potential for organic solar cells via a new figure of merit

Cited by 146 publications

References 75 publications

Non-fused ring acceptors for organic solar cells

Non-fused ring acceptors for organic solar cells

Influence of altering chlorine substitution positions on the photovoltaic properties of small molecule donors in all-small-molecule organic solar cells

Resist or Oxidize: Identifying Molecular Structure–Photostability Relationships for Conjugated Polymers Used in Organic Solar Cells

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