Full‐Color Inorganic Carbon Dot Phosphors for White‐Light‐Emitting Diodes

DOI Web Site Web Site 被引用文献4件
  • Zhen Tian
    State Key Laboratory of Luminescence and Applications Changchun Institute of Optics, Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033 China
  • Xutao Zhang
    State Key Laboratory of Luminescence and Applications Changchun Institute of Optics, Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033 China
  • Di Li
    State Key Laboratory of Luminescence and Applications Changchun Institute of Optics, Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033 China
  • Ding Zhou
    State Key Laboratory of Luminescence and Applications Changchun Institute of Optics, Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033 China
  • Pengtao Jing
    State Key Laboratory of Luminescence and Applications Changchun Institute of Optics, Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033 China
  • Dezhen Shen
    State Key Laboratory of Luminescence and Applications Changchun Institute of Optics, Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033 China
  • Songnan Qu
    State Key Laboratory of Luminescence and Applications Changchun Institute of Optics, Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033 China
  • Radek Zboril
    Regional Centre of Advanced Technologies and Materials Department of Physical Chemistry Faculty of Science Palacky University Olomouc 78371 Czech Republic
  • Andrey L. Rogach
    Department of Physics and Materials Science and Centre for Functional Photonics (CFP) City University of Hong Kong Kowloon 999077 Hong Kong SAR China

書誌事項

公開日
2017-07-28
権利情報
  • http://onlinelibrary.wiley.com/termsAndConditions#vor
DOI
  • 10.1002/adom.201700416
公開者
Wiley

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説明

<jats:p>Light‐emitting carbon dots (CDots) are widely investigated due to their distinct merits. However, it is still a challenge to modulate their bandgap emissions and conquer their aggregation‐induced luminescence quenching to achieve full‐color highly emissive CDot‐based phosphors. Herein, this study proposes an approach toward realization of full‐color emissive CDots from two common precursors, citric acid and urea, through employing three different solvents (water, glycerol, and dimethylformamide) and their combinations in a solvothermal synthesis. Employing sodium silicate solution, this study further demonstrates the microwave‐assisted method allowing to incorporate CDots into a silica network, which effectively prevents aggregation of CDots and results in strongly luminescent full‐color inorganic CDot phosphors with photoluminescence quantum yields of 30–40%. Through deposition of the red‐ and green‐emitting CDot phosphors on blue‐emitting InGaN chips, white‐light‐emitting diodes are fabricated with Commission Internationale de L'Eclairage of (0.34, 0.31) and the color rendering index of 82.4, indicating their promising application for solid‐state lighting.</jats:p>

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