期刊
SMALL
卷 16, 期 1, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201905266
关键词
enhancement of fluorescence emission; healthy white light emitting; high color rendering index; hybrid microspheres; tricolor quantum dots
类别
资金
- National Natural Science Foundations of China [21571067, 21671070]
- GDUPS
Commercial white light-emitting diodes (LEDs) have the undesirable characteristics of blue-rich emission and low color rendering index (CRI), while the constituent quantum dots (QDs) suffer from aggregation-induced fluorescence quenching and poor stability. Herein, a strategy is developed to assemble tricolor QDs into a polysiloxane matrix using a polymer-mediated hybrid approach whereby the hybrid composite exhibits a significant enhancement of aggregation-dispersed emission, outstanding photostability, high thermal stability, and outstanding fluorescence recovery. Using the as-prepared hybrid fluorescent materials, the fabricated LEDs exhibit solar spectrum-simulated emission with adjustable Commission Internationale de L'Eclairage coordinates, correlated color temperature, and a recorded CRI of 97. Furthermore, they present no ultraviolet emission and weak blue emission, thus indicating an ideal healthy and high-CRI white LED lighting source.
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