Multifunctional PMMA intermediate layer for sequentially deposited organic photovoltaics

Wei, Songtao; Li, Hongxiang; Wang, Ruohao; Dela Peña, Top Archie; Tang, Hua; Yu, Hailin; Gonzalez Lopez, Sandra P.; Wang, Jiayu; Li, Mingjie; Wu, Jiaying; Lu, Guanghao; Lu, Shirong; Zhao, Dewei; Yan, Cenqi; Laquai, Frédéric; Cheng, Pei

doi:10.1039/d4ta01335b

J. Mater. Chem. A

2024

DOI: 10.1039/d4ta01335b

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Multifunctional PMMA intermediate layer for sequentially deposited organic photovoltaics

Songtao Wei,

Hongxiang Li,

Ruohao Wang

et al.

Abstract: Enhancing exciton generation, promoting exciton dissociation, and facilitating charge transport and collection within the photoactive layer is crucial for improving the performance of organic photovoltaics (OPVs). In this study, we...

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Suppressing Static and Dynamic Disorder for High‐Efficiency and Stable Thick‐Film Organic Solar Cells via Synergistic Dilution Strategy

Fu,

Qiao,

Cui

et al. 2024

Advanced Materials

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Developing stable and highly efficient thick‐film organic solar cells (OSCs) is crucial for the large‐scale commercial application of organic photovoltaics. A novel synergistic dilution strategy to address this issue, using Polymethyl Methacrylate (PMMA) ‐modified zinc oxide (ZnO) as the interfacial layer, is introduced. This strategy effectively mitigates oxygen defects in ZnO while also regulating the self‐assembly process of the active layer to achieve an ordered distribution of donors and acceptors. In synergistic diluted devices, the dynamic disorder is reduced owing to the suppression of electron‐phonon coupling, while the static disorder is suppressed by improved molecular stacking and enhanced intermolecular interactions. Consequently, the 300 nm PM6:L8‐BO device post‐synergistic dilution manifests a marked enhancement in device performance, achieving a photovoltaic power conversion efficiency (PCE) >17% with excellent thermal stability. A typical ternary system is selected to explore the general applicability of synergistic dilution strategy, the PCE has been enhanced significantly from 17.89% to 18.72%, which falls within the range of the highest values among inverted single junction OSCs. As a practical application that depends on the pivotal synergy between high efficiency and stability, this approach paves the way for large‐scale implementation of OSCs and ensures cost‐effectiveness.

show abstract

Suppressing Static and Dynamic Disorder for High‐Efficiency and Stable Thick‐Film Organic Solar Cells via Synergistic Dilution Strategy

Fu,

Qiao,

Cui

et al. 2024

Advanced Materials

View full text Add to dashboard Cite

show abstract

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Multifunctional PMMA intermediate layer for sequentially deposited organic photovoltaics

Abstract: Enhancing exciton generation, promoting exciton dissociation, and facilitating charge transport and collection within the photoactive layer is crucial for improving the performance of organic photovoltaics (OPVs). In this study, we...

Cited by 1 publication

References 68 publications

Suppressing Static and Dynamic Disorder for High‐Efficiency and Stable Thick‐Film Organic Solar Cells via Synergistic Dilution Strategy

Suppressing Static and Dynamic Disorder for High‐Efficiency and Stable Thick‐Film Organic Solar Cells via Synergistic Dilution Strategy

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