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Advanced Materials

Quasi-Amorphous Colloidal Structures for Electrically Tunable Full-Color Photonic Pixels with Angle-Independency

Authors

  • Insook Lee,

    1. Nanobrick Co., Ltd, Advanced Institute of Convergence Technology, 906–5 Iui Dong, Youngtong Gu, Suwon, Gyeonggi Do, 443–270 (Korea)
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  • Daihyun Kim,

    1. Department of Chemistry, Research Institute for Natural Sciences and Institute of Nano Science and Technology, Hanyang University, 17 Haengdang Dong, Seongdong Gu, Seoul, 133–791 (Korea)
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  • Jinha Kal,

    1. Nanobrick Co., Ltd, Advanced Institute of Convergence Technology, 906–5 Iui Dong, Youngtong Gu, Suwon, Gyeonggi Do, 443–270 (Korea)
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  • Heeyoel Baek,

    1. Department of Chemistry, Research Institute for Natural Sciences and Institute of Nano Science and Technology, Hanyang University, 17 Haengdang Dong, Seongdong Gu, Seoul, 133–791 (Korea)
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  • Dongwoo Kwak,

    1. Department of Chemistry, Research Institute for Natural Sciences and Institute of Nano Science and Technology, Hanyang University, 17 Haengdang Dong, Seongdong Gu, Seoul, 133–791 (Korea)
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  • Dahyeon Go,

    1. Nanobrick Co., Ltd, Advanced Institute of Convergence Technology, 906–5 Iui Dong, Youngtong Gu, Suwon, Gyeonggi Do, 443–270 (Korea)
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  • Eunjoo Kim,

    1. Department of Chemistry, Research Institute for Natural Sciences and Institute of Nano Science and Technology, Hanyang University, 17 Haengdang Dong, Seongdong Gu, Seoul, 133–791 (Korea)
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  • Changjoon Kang,

    1. Department of Chemistry, Research Institute for Natural Sciences and Institute of Nano Science and Technology, Hanyang University, 17 Haengdang Dong, Seongdong Gu, Seoul, 133–791 (Korea)
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  • Jeyon Chung,

    1. Department of Chemistry, Research Institute for Natural Sciences and Institute of Nano Science and Technology, Hanyang University, 17 Haengdang Dong, Seongdong Gu, Seoul, 133–791 (Korea)
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  • Yulim Jang,

    1. Department of Chemistry, Research Institute for Natural Sciences and Institute of Nano Science and Technology, Hanyang University, 17 Haengdang Dong, Seongdong Gu, Seoul, 133–791 (Korea)
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  • Seungwook Ji,

    1. Department of Chemistry, Research Institute for Natural Sciences and Institute of Nano Science and Technology, Hanyang University, 17 Haengdang Dong, Seongdong Gu, Seoul, 133–791 (Korea)
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  • Jaehyun Joo,

    Corresponding author
    1. Nanobrick Co., Ltd, Advanced Institute of Convergence Technology, 906–5 Iui Dong, Youngtong Gu, Suwon, Gyeonggi Do, 443–270 (Korea)
    • Nanobrick Co., Ltd, Advanced Institute of Convergence Technology, 906–5 Iui Dong, Youngtong Gu, Suwon, Gyeonggi Do, 443–270 (Korea).
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  • Youngjong Kang

    Corresponding author
    1. Department of Chemistry, Research Institute for Natural Sciences and Institute of Nano Science and Technology, Hanyang University, 17 Haengdang Dong, Seongdong Gu, Seoul, 133–791 (Korea)
    • Department of Chemistry, Research Institute for Natural Sciences and Institute of Nano Science and Technology, Hanyang University, 17 Haengdang Dong, Seongdong Gu, Seoul, 133–791 (Korea)
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Abstract

Quasi-amorphous colloidal structures exhibiting angle-independent tunable photonic colors in response to the electric stimuli. Moderately polydisperse colloidal Fe3O4@SiO2 nanoparticles dispersed in organic solvents exclusively form quasi-amorphous photonic materials at sufficiently high concentrations, and which reversibly reflect incident light in visible region in response to the relatively low bias voltages.

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