A saturated red color converter for visible light communication using a blend of star-shaped organic semiconductors

M. T.  Sajjad; P. P.  Manousiadis; C.  Orofino; A. L.  Kanibolotsky; N. J.  Findlay; Sujan Rajbhandari; D. A.  Vithanage; Hyunchae  Chun; Grahame  Faulkner; D. C. O'Brien; P. J. Skabara; G. A. Turnbull; I. Samuel

doi:10.1063/1.4971823

A saturated red color converter for visible light communication using a blend of star-shaped organic semiconductors

M. T. Sajjad, P. P. Manousiadis, C. Orofino, A. L. Kanibolotsky, N. J. Findlay, Sujan Rajbhandari, D. A. Vithanage, Hyunchae Chun, Grahame Faulkner, D. C. O'Brien, P. J. Skabara, G. A. Turnbull, I. Samuel

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Abstract

We report a study of blends of semiconducting polymers as saturated red color converters to replace commercial phosphors in hybrid Light emitting diodes (LEDs) for visible light communication (VLC). By blending two star-shaped organic semiconductor molecules, we found a near complete energy transfer (>90% efficiency) from the green-emitting truxene-cored compound T4BT-B to the red-emitting boron dipyrromethene (BODIPY) cored materials. Furthermore, we have demonstrated the capability of these materials as fast color converters for VLC by measuring their intrinsic optical modulation bandwidth and data rate. The measured 3 dB modulation bandwidth of blends (∼55 MHz) is more than 10 times higher than commercially available LED phosphors and also higher than the red-emitting BODIPY color converter alone in solution. The data rate achieved with this blend is 20 times higher than measured with a commercially available phosphor based color converter.

Original language	English
Article number	013302
Journal	Applied Physics Letters
Volume	110
DOIs	https://doi.org/10.1063/1.4971823
Publication status	Published - 6 Jan 2017

Keywords

Energy transfer
Light emitting diodes
Phosphors
Absorption spectra
Colorimetry

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Sajjad_et_al_Saturated_Red_Color_Converter_Applied_Physics_LettersFinal published version, 1.35 MB

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Sajjad, M. T., Manousiadis, P. P., Orofino, C., Kanibolotsky, A. L., Findlay, N. J., Rajbhandari, S., Vithanage, D. A., Chun, H., Faulkner, G., O'Brien, D. C., Skabara, P. J., Turnbull, G. A., & Samuel, I. (2017). A saturated red color converter for visible light communication using a blend of star-shaped organic semiconductors. Applied Physics Letters, 110, Article 013302. https://doi.org/10.1063/1.4971823

Sajjad, MT, Manousiadis, PP, Orofino, C, Kanibolotsky, AL, Findlay, NJ, Rajbhandari, S, Vithanage, DA, Chun, H, Faulkner, G, O'Brien, DC, Skabara, PJ, Turnbull, GA & Samuel, I 2017, 'A saturated red color converter for visible light communication using a blend of star-shaped organic semiconductors', Applied Physics Letters, vol. 110, 013302. https://doi.org/10.1063/1.4971823

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title = "A saturated red color converter for visible light communication using a blend of star-shaped organic semiconductors",

abstract = "We report a study of blends of semiconducting polymers as saturated red color converters to replace commercial phosphors in hybrid Light emitting diodes (LEDs) for visible light communication (VLC). By blending two star-shaped organic semiconductor molecules, we found a near complete energy transfer (>90% efficiency) from the green-emitting truxene-cored compound T4BT-B to the red-emitting boron dipyrromethene (BODIPY) cored materials. Furthermore, we have demonstrated the capability of these materials as fast color converters for VLC by measuring their intrinsic optical modulation bandwidth and data rate. The measured 3 dB modulation bandwidth of blends (∼55 MHz) is more than 10 times higher than commercially available LED phosphors and also higher than the red-emitting BODIPY color converter alone in solution. The data rate achieved with this blend is 20 times higher than measured with a commercially available phosphor based color converter.",

keywords = "Energy transfer, Light emitting diodes, Phosphors, Absorption spectra, Colorimetry",

author = "Sajjad, {M. T.} and Manousiadis, {P. P.} and C. Orofino and Kanibolotsky, {A. L.} and Findlay, {N. J.} and Sujan Rajbhandari and Vithanage, {D. A.} and Hyunchae Chun and Grahame Faulkner and O'Brien, {D. C.} and Skabara, {P. J.} and Turnbull, {G. A.} and I. Samuel",

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AU - Sajjad, M. T.

AU - Manousiadis, P. P.

AU - Orofino, C.

AU - Kanibolotsky, A. L.

AU - Findlay, N. J.

AU - Rajbhandari, Sujan

AU - Vithanage, D. A.

AU - Chun, Hyunchae

AU - Faulkner, Grahame

AU - O'Brien, D. C.

AU - Skabara, P. J.

AU - Turnbull, G. A.

AU - Samuel, I.

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N2 - We report a study of blends of semiconducting polymers as saturated red color converters to replace commercial phosphors in hybrid Light emitting diodes (LEDs) for visible light communication (VLC). By blending two star-shaped organic semiconductor molecules, we found a near complete energy transfer (>90% efficiency) from the green-emitting truxene-cored compound T4BT-B to the red-emitting boron dipyrromethene (BODIPY) cored materials. Furthermore, we have demonstrated the capability of these materials as fast color converters for VLC by measuring their intrinsic optical modulation bandwidth and data rate. The measured 3 dB modulation bandwidth of blends (∼55 MHz) is more than 10 times higher than commercially available LED phosphors and also higher than the red-emitting BODIPY color converter alone in solution. The data rate achieved with this blend is 20 times higher than measured with a commercially available phosphor based color converter.

AB - We report a study of blends of semiconducting polymers as saturated red color converters to replace commercial phosphors in hybrid Light emitting diodes (LEDs) for visible light communication (VLC). By blending two star-shaped organic semiconductor molecules, we found a near complete energy transfer (>90% efficiency) from the green-emitting truxene-cored compound T4BT-B to the red-emitting boron dipyrromethene (BODIPY) cored materials. Furthermore, we have demonstrated the capability of these materials as fast color converters for VLC by measuring their intrinsic optical modulation bandwidth and data rate. The measured 3 dB modulation bandwidth of blends (∼55 MHz) is more than 10 times higher than commercially available LED phosphors and also higher than the red-emitting BODIPY color converter alone in solution. The data rate achieved with this blend is 20 times higher than measured with a commercially available phosphor based color converter.

KW - Energy transfer

KW - Light emitting diodes

KW - Phosphors

KW - Absorption spectra

KW - Colorimetry

U2 - 10.1063/1.4971823

DO - 10.1063/1.4971823

M3 - Article

SN - 1077-3118

VL - 110

JO - Applied Physics Letters

JF - Applied Physics Letters

M1 - 013302

ER -

A saturated red color converter for visible light communication using a blend of star-shaped organic semiconductors

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