A saturated red color converter for visible light communication using a blend of star-shaped organic semiconductors
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In: Applied Physics Letters, Vol. 110, 06.01.2017.
Research output: Contribution to journal › Article › peer-review
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T1 - A saturated red color converter for visible light communication using a blend of star-shaped organic semiconductors
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.
PY - 2017/1/6
Y1 - 2017/1/6
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
VL - 110
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
ER -