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Sensitive near-infr...
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Wan, LiLinköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
(author)
Sensitive near-infrared circularly polarized light detection via non-fullerene acceptor blends
- Article/chapterEnglish2023
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NATURE PORTFOLIO,2023
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LIBRIS-ID:oai:DiVA.org:liu-196079
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https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-196079URI
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https://doi.org/10.1038/s41566-023-01230-zDOI
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
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Funding Agencies|Knut and Alice Wallenberg Foundation [KAW 2019.0082]; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University [2009-00971]; Stiftelsen for Strategisk Forskning through a Future Research Leader programme [FFL18-0322]; Office of Naval Research [N00014-20-1-2110]; UA College of Science; Linkoping University
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Circularly polarized light (CPL) is widely used for various applications in sensing and imaging(1-3). An ongoing challenge is to realize high-quality CPL detection using chiral organic semiconductors, especially in the near-infrared (NIR) region(4). Chiral molecules tend to rely on twisted stereogenic moieties; however, conventional approaches to reduce the bandgap of organic semiconductors are based on the use of co-planar backbones that commonly lead to molecular symmetries preventing chirality. Here we report a widely applicable strategy to directly induce chiroptical activity in planar non-fullerene acceptors(5-7), which are widely used for high-performance organic photovoltaics and provide a wealth of opportunities to fill the spectral gap of CPL detection in the NIR regime. We demonstrate proof-of-concept circularly polarized organic photodiodes using chiroptically active non-fullerene acceptor blends, which exhibit strong circular dichroism and hence great sensitivity to CPL in the NIR region. Importantly, this strategy is found to be effective in a wide series of state-of-the-art non-fullerene acceptor families including ITIC5, o-IDTBR6 and Y6 analogues(7), which substantially broadens the range of materials applicable to NIR CPL detection.
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Zhang, RuiLinköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten(Swepub:liu)ruizh84
(author)
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Cho, EunkyungUniv Arizona, AZ USA
(author)
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Li, HongxiangChinese Acad Sci, Peoples R China
(author)
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Coropceanu, VeaceslavUniv Arizona, AZ USA
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Bredas, Jean-LucUniv Arizona, AZ USA
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Gao, FengLinköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten(Swepub:liu)fenga88
(author)
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Linköpings universitetElektroniska och fotoniska material
(creator_code:org_t)
Related titles
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In:Nature Photonics: NATURE PORTFOLIO17:8, s. 649-6551749-48851749-4893
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