Development of multidye UV filters for OPVs using luminescent materials

Fernandes, R. V., Bristow, N., Stoichkov, V., Anizelli, H. S., Duarte, J. L., Laureto, E. and Kettle, J. (2017) Development of multidye UV filters for OPVs using luminescent materials. Journal of Physics D: Applied Physics, 50, 025103. (doi: 10.1088/1361-6463/50/2/025103)

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Abstract

Luminescence down-shifting (LDS) is used in several photovoltaic technologies aiming to improve the photon conversion efficiency (PCE) of the devices through the increase of the light harvesting in the regions of the electromagnetic spectrum where the EQE of the solar cells is poor. The aim of this work was to produce films of mixtures (blends) of two luminescent materials, dispersed in a poly-methyl methacrylate (PMMA) matrix, hoping to improve their properties both as LDS layer and as UV filter when applied on the clear, external surface of P3HT:PC61BM photovoltaic devices. The best results led to an increment of 7.4% in the PCE of the devices, and a six fold enhancement in their half-life (T50%). This study indicates that multidye LDS layers with optimized optical properties can lead to an effective improvement in the performance and operational stability of OPVs.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Kettle, Dr Jeff
Authors: Fernandes, R. V., Bristow, N., Stoichkov, V., Anizelli, H. S., Duarte, J. L., Laureto, E., and Kettle, J.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Journal of Physics D: Applied Physics
Publisher:IOP Publishing
ISSN:0022-3727
ISSN (Online):1361-6463
Published Online:30 November 2016
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