BODIPY star-shaped molecules as solid state colour converters for visible light communications
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In this paper we study a family of solid-state, organic semiconductors for visible light communications. The star-shaped molecules have a boron-dipyrromethene (BODIPY) core with a range of side arm lengths which control the photophysical properties. The molecules emit red light with photoluminescence quantum yields ranging from 22 - 56 %. Thin films of the most promising BODIPY molecules were used as a red colour converter for visible light communications. The film enabled colour conversion with a modulation bandwidth of 73 MHz, which is 16 times higher than of a typical phosphor used in LED lighting systems. A data rate of 370 Mbit/s was demonstrated using On-Off keying modulation in a free space link with a distance of ~15 cm.
Vithanage , C D A , Manousiadis , P , Sajjad , M T , Rajbhandari , S , Chun , H , Orofino , C , Cortizo-Lacalle , D , Kanibolotsky , A , Faulkner , G , Findlay , N , O'Brien , D , Skabara , P , Samuel , I D W & Turnbull , G A 2016 , ' BODIPY star-shaped molecules as solid state colour converters for visible light communications ' Applied Physics Letters , vol 109 , no. 1 , 013302 . DOI: 10.1063/1.4953789
Applied Physics Letters
© 2016, AIP Publishing. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at scitation.aip.org
We thank EPSRC for financial support from the UP-VLC Programme Grant (EP/K00042X/1). I.D.W.S. and P.J.S. are Royal Society Wolfson Research Merit Award holders. The research data supporting this publication can be accessed at http://dx.doi.org/10.17630/20163d03-6cc2-43b6-915c-d271f5220454.
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