Single-junction solar cells exhibit a bottleneck in their efficiency due to incomplete or inefficient harvesting of light in the low(IR)- or high(UV)- energy regions of the solar spectrum. Spectral converters can be used to convert solar photons into energies that are more effectively captured by the solar cell through a photoluminescence process. They are either applied directly to the surface of the solar cell or used in a concentrator architecture, where solar cells are attached to a luminescence waveguide plate.
Our group is interested in the development of novel multifunctional organic-inorganic hybrid materials for spectral conversion applications that specifically overcome the limitations of the materials traditionally employed. This includes:
- new coordination and templating approaches to control lumophore placement and orientation within the host material, thereby limiting losses due to reabsorption
- design of novel high refractive index materials to inhibit waveguide losses
- new barrier/encapsulant materials to extend the device lifetime.
Large Area Quantum Dot Luminescent Solar Concentrators for Use with Dye-Sensitised Solar Cells, L. J. Brennan, F. Purcell-Milton, B. McKenna, T. M. Watson, Y. K. Gun’ko, and R. C. Evans*, Journal of Materials Chemistry A, 2018, 6, 2671-2680.
Ureasil Organic-Inorganic Hybrids as Photoactive Waveguides for Conjugated Polyelectrolyte Luminescent Solar Concentrators, I. Meazzini, C. Blayo, J. Arlt, A.-T. Marques, U. Scherf, H. D. Burrows and R. C. Evans*, Materials Chemistry Frontiers, 2017, 1, 2271 – 2282.
Enhancing the Stability of Organolead Halide Perovskite Films Through Polymer Encapsulation, B. McKenna, J. R. Troughton, T. M. Watson and R. C. Evans*, RSC Advances, 2017, 7, 32942-32951.
Design and Response of High-Efficiency Planar Doped Luminescent Solar Concentrators using Organic-Inorganic Di-Ureasil Waveguides, A. Kaniyoor, B. McKenna, S. Comby, R. C. Evans*, Adv. Opt. Mater., 2016, 4, 444-456.