Warm-White-Light-Emitting Diode Based on a Dye-Loaded Metal–Organic Framework for Fast White-Light Communication

A dye@metal–organic framework (MOF) hybrid was used as a fluorophore in a white-light-emitting diode (WLED) for fast visible-light communication (VLC). The white light was generated from a combination of blue emission of the 9,10-dibenzoate anthracene (DBA) linkers and yellow emission of the encapsu...

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Bibliographic Details
Published in:ACS applied materials & interfaces 2017-10, Vol.9 (40), p.35253-35259
Main Authors: Wang, Zhiye, Wang, Zi, Lin, Bangjiang, Hu, XueFu, Wei, YunFeng, Zhang, Cankun, An, Bing, Wang, Cheng, Lin, Wenbin
Format: Article
Language:English
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Summary:A dye@metal–organic framework (MOF) hybrid was used as a fluorophore in a white-light-emitting diode (WLED) for fast visible-light communication (VLC). The white light was generated from a combination of blue emission of the 9,10-dibenzoate anthracene (DBA) linkers and yellow emission of the encapsulated Rhodamine B molecules. The MOF structure not only prevents dye molecules from aggregation-induced quenching but also efficiently transfers energy to the dye for dual emission. This light-emitting material shows emission lifetimes of 1.8 and 5.3 ns for the blue and yellow components, respectively, which are significantly shorter than the 200 ns lifetime of Y3Al5O12:Ce3+ in commercial WLEDs. The MOF-WLED device exhibited a modulating frequency of 3.6 MHz for VLC, six times that of commercial WLEDs.
ISSN:1944-8244
1944-8252
DOI:10.1021/acsami.7b11277