https://doi.org/10.1051/epjap/2014140120
Anisotropic light emission from aligned luminophores
1
Functional Organic Materials & Devices, Chemical Engineering & Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
2
Philips Research Europe, High Tech Campus 4, 5656 AE Eindhoven, The Netherlands
a email: m.g.debije@tue.nl
Received:
25
March
2014
Accepted:
12
May
2014
Published online:
17
June
2014
The emission of aligned dichroic dyes in a luminescent solar concentrator (LSC) illuminated from one side with collimated light results in a non-isotropic light distribution. We develop a model to describe emission profiles for dichroic dyes aligned at a general tilt angle with respect to a lightguide surface (including planar and homeotropic alignments) for various order parameters. We compare calculations with experimental results, demonstrating the dichroic nature of the dyes can have significant impact on the surface loss of luminescent solar concentrators. Including this dichroic nature is essential in correctly simulating the preferred edge emissions demonstrated experimentally in dyes aligned planarly on the surface of a lightguide.
© EDP Sciences, 2014
