Chiral Se Nanobrooms with Wavelength and Polarization Sensitive Scattering

Junyoung Kwon; Thomas G. Parton; Youngeun ChoiSang-Gil LeeBruno Frka-PetesicJaebeom LeeSilvia VignoliniJihyeon Yeom

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Chiral Se Nanobrooms with Wavelength and Polarization Sensitive Scattering

机译：Chiral Se Nanobrooms with Wavelength and Polarization Sensitive Scattering

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High-index dielectric nanostructures offer strong magnetic and electricresonances in the visible range and low optical losses, stimulating researchinterest in their use for light manipulation technologies. Lithographic fabricationof dielectric nanostructures, while providing precise control over thepattern dimensions, limits the scalability of this approach for practical applicationsdue to an inefficient fabrication process and limited production quantity.Here, the colloidal synthesis of high-index chiral dielectric nanostructureswith a broom-like geometry made from trigonal Se is demonstrated. Theanisotropic morphology and crystal structure of Se nanobrooms enable bothlinearly and circularly polarized scattering, as well as spectrum variationalong the particle axis, which is, to the authors’ knowledge, the first observationof such behavior from dielectric colloidal nanostructures. To show theversatility of the highly scattering Se NB suspensions, 2D and 3D printing ofSe NB inks are demonstrated as a proof of concept. This approach providesa way to manipulate light using aqueous dispersions of high-index dielectricnanostructures, unlocking their potential to fit in various morphologies anddimensions in 2D and 3D for broad applications.

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《Advanced functional materials》 |2023年第29期|2300927.1-2300927.10|共10页
作者
Junyoung Kwon; Thomas G. Parton; Youngeun ChoiSang-Gil LeeBruno Frka-PetesicJaebeom LeeSilvia VignoliniJihyeon Yeom;
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Department of Materials Science and EngineeringKorea Advanced Institute of Science and Technology (KAIST)Daejeon 34141, Republic of Korea,Yusuf Hamied Department of ChemistryUniversity of CambridgeCambridge CB2 1EW, UK;

Yusuf Hamied Department of ChemistryUniversity of CambridgeCambridge CB2 1EW, UK;

Department of chemistryChungnam National UniversityDaejeon 34134, Republic of KoreaNano-Bio Electron Microscopy Research GroupKorea Basic Science InstituteDaejeon 34133, Republic of KoreaDepartment of Materials Science and EngineeringKorea Advanced Institute of Science and Technology (KAIST)Daejeon 34141, Republic of Korea,Department of Biological SciencesKorea Advanced Institute of Science and Technology (KAIST)Daejeon 3414, Republic of;

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正文语种英语
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chiral single nanostructures; circularly polarized scattering; color routing; high-index dielectric nanostructures; trigonal selenium;

Chiral Se Nanobrooms with Wavelength and Polarization Sensitive Scattering

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