Recyclable soft photonic crystal film with overall improved circularly polarized luminescence

Yonghong Shi, Jianlei Han, Chengxi Li, Tonghan Zhao, Xue Jin and Pengfei Duan ()
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Yonghong Shi: National Center for Nanoscience and Technology (NCNST)
Jianlei Han: National Center for Nanoscience and Technology (NCNST)
Chengxi Li: National Center for Nanoscience and Technology (NCNST)
Tonghan Zhao: National Center for Nanoscience and Technology (NCNST)
Xue Jin: National Center for Nanoscience and Technology (NCNST)
Pengfei Duan: National Center for Nanoscience and Technology (NCNST)

Nature Communications, 2023, vol. 14, issue 1, 1-9

Abstract: Abstract Existing circularly polarized luminescence materials can hardly satisfy the requirements of both large luminescence dissymmetry factor and high luminescent quantum yield, which hinders their practical applications. Here, we present a soft photonic crystal film embedded with chiral nanopores that possesses excellent circularly polarized luminescence performance with a high luminescence dissymmetry factor as well as a large luminescent quantum yield when loaded with various luminescent dyes. Benefitting from the retention of chiral nanopores imprinted from a chiral liquid crystal arrangement, the chiral soft photonic crystal film can not only endow dyes with chiral properties, but also effectively avoid severe aggregation of guest dye molecules. More importantly, the soft photonic crystal film can be recycled many times by loading and eluting guest dye molecules while retaining good stability as well as circularly polarized luminescence performance, enabling various applications, including smart windows, multi-color circularly polarized luminescence and anticounterfeiting.

Date: 2023
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DOI: 10.1038/s41467-023-41884-5

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