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Polymer colour converter with very high modulation bandwidth for visible light communications

Vithanage, D. A. and Kanibolotskyy, A. L. and Rajbhandari, S. and Manousiadis, P. P. and Sajjad, M. T. and Chun, H. and Faulkner, G. E. and O'Brien, D. C. and Skabara, P. J. and Samuel, I. D. W. and Turnbull, G. A. (2017) Polymer colour converter with very high modulation bandwidth for visible light communications. Journal of Materials Chemistry. C (35). pp. 8916-8920. ISSN 2050-7526

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For white light data communications, broadband light emitting materials are required, whose emission can be rapidly modulated in intensity. We report the synthesis, photophysics and application of a novel semiconducting polymer for use as a high bandwidth colour converter, to replace commercial phosphors in white LEDs. The high modulation bandwidth (470 MHz) is 140 times higher than that measured using a conventional LED phosphor.