Pyrene-Terminated Self-Assembled Monolayers on Au Substrate: Molecular Organization and Charge Transport Properties

Liu, Yangbiao; Notz, Sebastian; Lang, Heinrich; Zharnikov, Michael

doi:10.1021/acs.jpcc.3c05201

J. Phys. Chem. C

2023

DOI: 10.1021/acs.jpcc.3c05201

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Pyrene-Terminated Self-Assembled Monolayers on Au Substrate: Molecular Organization and Charge Transport Properties

Yangbiao Liu,

Sebastian Notz,

Heinrich Lang

et al.

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2024

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Cited by 1 publication

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Pyrene‐Based Self‐Assembled Monolayer with Improved Surface Coverage and Energy Level Alignment for Perovskite Solar Cells

Lenaers,

Lammar,

Krishna

et al. 2024

Adv Funct Materials

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Recently, the efficiency of p‐i‐n perovskite solar cells drastically increased, a pivotal factor being the incorporation of self‐assembled monolayers (SAMs) as a hole‐transporting layer (HTL). SAMs offer many advantages over conventional HTLs, including minimal material requirements, low cost, and facile processing. Current research is mainly focused on the development of carbazole‐derived SAMs. However, the versatility of organic chemistry allows for the design of SAMs with alternative organic cores that may possess specific benefits. In this study, three novel SAMs are incorporated in p‐i‐n perovskite solar cells, each based on an aromatic core commonly used in organic semiconductors. The novel SAMs vary in their energy level alignment with the perovskite active layer. Optimal alignment is achieved with a pyrene‐based SAM (4PAPyr), resulting in solar cells that outperform the commercially available 2PACz. Moreover, due to improved surface coverage, the use of 4PAPyr leads to a significantly higher number of working solar cell devices when compared to 2PACz, which is of particular interest with regard to upscaling. After device optimization, a power conversion efficiency of 22.2% is achieved with 4PAPyr. This research underlines the importance of diversifying SAMs to unlock further advancements in perovskite solar cell efficiency and scalability.

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Pyrene‐Based Self‐Assembled Monolayer with Improved Surface Coverage and Energy Level Alignment for Perovskite Solar Cells

Lenaers,

Lammar,

Krishna

et al. 2024

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

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Pyrene-Terminated Self-Assembled Monolayers on Au Substrate: Molecular Organization and Charge Transport Properties

Cited by 1 publication

References 77 publications

Pyrene‐Based Self‐Assembled Monolayer with Improved Surface Coverage and Energy Level Alignment for Perovskite Solar Cells

Pyrene‐Based Self‐Assembled Monolayer with Improved Surface Coverage and Energy Level Alignment for Perovskite Solar Cells

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