Novel fast color-converter for visible light communication using a blend of conjugated polymers

Journal article


Sajjad, T, Manousiadis, Pavlos P, Chun, Hyunchae, Vithanage, Dimali A, Rajbhandari, Sujan, Kanibolotsky, Alexander L, Faulkner, Grahame, O’Brien, Dominic, Skabara, Peter J and Samuel, Ifor DW (2015). Novel fast color-converter for visible light communication using a blend of conjugated polymers. Acs Photonics. 2 (2), pp. 194-199.
AuthorsSajjad, T, Manousiadis, Pavlos P, Chun, Hyunchae, Vithanage, Dimali A, Rajbhandari, Sujan, Kanibolotsky, Alexander L, Faulkner, Grahame, O’Brien, Dominic, Skabara, Peter J and Samuel, Ifor DW
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.

Year2015
JournalAcs Photonics
Journal citation2 (2), pp. 194-199
PublisherAmerican Chemical Society
ISSN2330-4022
Digital Object Identifier (DOI)doi:10.1021/ph500451y
Publication dates
Print18 Feb 2015
Online03 Feb 2015
Publication process dates
Accepted30 Nov 2014
Deposited12 Feb 2020
Accepted author manuscript
License
CC BY-NC 4.0
File Access Level
Open
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https://openresearch.lsbu.ac.uk/item/88z65

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