Novel fast color-converter for visible light communication using a blend of conjugated polymers
Abstract
Visible Light Communications (VLC) is a promising new technology which could offer higher data transmission rates than existing broadband RF/microwave wireless technologies. In this paper, we show that a blend of semiconducting polymers can be used to make a broadband, balanced color converter with a very high modulation bandwidth to replace commercial phosphors in hybrid LEDs for visible light communications. The resulting color converter exploits partial Förster energy transfer in a blend of the highly fluorescent green emitter BBEHP-PPV and orange-red emitting MEH-PPV. We quantify the efficiency of the photoinduced energy transfer from BBEHP-PPV to MEH-PPV, and demonstrate modulation bandwidths (electrical-electrical) of ∼200 MHz, which are 40 times higher than commercially available phosphor LEDs. Furthermore, the VLC data rate achieved with this blend using On-Off Keying (OOK) is many times (∼35) higher than that measured with a commercially available phosphor color converter.
Citation
Sajjad , M T , Manousiadis , P P , Chun , H , Vithanage , D A , Rajbhandari , S , Kanibolotsky , A L , Faulkner , G , Obrien , D , Skabara , P J , Samuel , I D W & Turnbull , G A 2015 , ' Novel fast color-converter for visible light communication using a blend of conjugated polymers ' , ACS Photonics , vol. 2 , no. 2 , pp. 194-199 . https://doi.org/10.1021/ph500451y
Publication
ACS Photonics
Status
Peer reviewed
Type
Journal article
Description
The authors thank EPSRC for financial support from UP-VLC Project Grant (EP/K00042X/1).Collections
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