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Sunlike White-Light-Emitting Diodes Based on Zero-Dimensional Organic Metal Halide Hybrids.

Michael WorkuYu TianChenkun ZhouSujin LeeQuinton MeisnerYan ZhouBiwu Ma
Published in: ACS applied materials & interfaces (2018)
Here we report ultraviolet (UV)-pumped white-light-emitting diodes (WLEDs) with sunlike full spectrum emissions, by using a commercially available blue phosphor (BaMgAl10O17:Eu2+) and a series of broadband zero-dimensional (0D) organic metal halide hybrids as down conversion phosphors. By controlling the blend ratio of phosphors, we have achieved high-quality WLEDs with excellent general color rendering index (CRI Ra) of up to 99 and deep-red rendering index (R9) of up to 99. These WLEDs exhibiting white emissions with correlated color temperatures (CCTs) ranging from 3000 to 6000 K perfectly mimic sunlight at different times of day.
Keyphrases
  • light emitting
  • energy transfer
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  • high efficiency