Advanced Materials

Visible-Color-Tunable Light-Emitting Diodes

Authors

  • Young Joon Hong,

    1. National Creative Research Initiative Center for Semiconductor, Nanorods, and Department of Physics and Astronomy, Seoul National University, Seoul 151–747, Korea
    2. Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 790–784, Korea
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  • Chul-Ho Lee,

    1. National Creative Research Initiative Center for Semiconductor, Nanorods, and Department of Physics and Astronomy, Seoul National University, Seoul 151–747, Korea
    2. Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 790–784, Korea
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  • Aram Yoon,

    1. School of Materials Science and Engineering, Seoul National University, Seoul 151–744, Korea
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  • Miyoung Kim,

    1. School of Materials Science and Engineering, Seoul National University, Seoul 151–744, Korea
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  • Han-Kyu Seong,

    1. R&D Center, Samsung LED Co., Ltd. Suwon 443–744, Korea
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  • Hun Jae Chung,

    1. R&D Center, Samsung LED Co., Ltd. Suwon 443–744, Korea
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  • Cheolsoo Sone,

    1. R&D Center, Samsung LED Co., Ltd. Suwon 443–744, Korea
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  • Yong Jo Park,

    1. R&D Center, Samsung LED Co., Ltd. Suwon 443–744, Korea
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  • Gyu-Chul Yi

    Corresponding author
    1. National Creative Research Initiative Center for Semiconductor, Nanorods, and Department of Physics and Astronomy, Seoul National University, Seoul 151–747, Korea
    • National Creative Research Initiative Center for Semiconductor, Nanorods, and Department of Physics and Astronomy, Seoul National University, Seoul 151–747, Korea.
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Abstract

Visible-color-tunable light-emitting diodes (LEDs) with electroluminescent color that changes continuously from red to blue by adjusting the external electric bias are fabricated using multifacetted GaN nanorods with anisotropically formed 3D InGaN multiple-quantum wells. Monolithically integrated red, green, and blue LEDs on a single substrate, operating at a fixed drive current, are also demonstrated for inorganic full-color LED display applications.

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