Phenanthrenequinone-based molecular films as interlayers for perovskite solar cells: Impact of aryl substituents

9,10-Phenanthrenequinone (PQ)-based molecules exhibit excellent electrical and chemical properties, making them promising building blocks for electronic and energy-related applications. In the present study, we investigated PQ-based interlayers in perovskite solar cells (PSCs) to enhance the perform...

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Main Authors: Lin, Yun-Tao (Author) , Wong, Man-Hin (Author) , Zharnikov, Michael (Author) , Krishnan, Anjana (Author) , Ho, Jinn-Hsuan (Author) , Tai, Yian (Author)
Format: Article (Journal)
Language:English
Published: 1 February 2026
In: Surfaces and Interfaces
Year: 2026, Volume: 82, Pages: 1-8
ISSN:2468-0230
DOI:10.1016/j.surfin.2025.108397
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.surfin.2025.108397
Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S2468023025026495
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Author Notes:Yun-Tao Lin, Man-Hin Wong, Michael Zharnikov, Anjana Krishnan, Jinn-Hsuan Ho, Yian Tai
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Summary:9,10-Phenanthrenequinone (PQ)-based molecules exhibit excellent electrical and chemical properties, making them promising building blocks for electronic and energy-related applications. In the present study, we investigated PQ-based interlayers in perovskite solar cells (PSCs) to enhance the performance of these devices. A series of diaryl-substituted PQ derivatives was synthesized and incorporated, as an interlayer, between the perovskite absorber and Spiro-OMeTAD hole transport layer in a n-i-p device architecture. Most derivatives improved the fill factor, while that with thiophene also increased the open-circuit voltage. Optoelectronic and structural analysis suggests that the introduction of a suitable PQ-based interlayer, influenced by aryl group modifications, enhances hole transport and reduces recombination losses. These findings highlight this approach as a promising strategy for optimizing PSC efficiency.
Item Description:Online verfügbar 2 January 2026, Version des Artikels 16 January 2026
Gesehen am 27.04.2026
Physical Description:Online Resource
ISSN:2468-0230
DOI:10.1016/j.surfin.2025.108397