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Title:
 
External Quantum Efficiency Measurements of Luminescent Solar Concentrators: a Study of the Impact of Backside Reflector Size and Shape
 
Author(s):
 
M. Pravettoni, D.J. Farrell, A.J. Chatten, R. Bose, R.P. Kenny, K.W.J. Barnham
 
Keywords:
 
Spectral Response, Luminescent Solar Collectors, Concentrator
 
Topic:
 
Advanced Photovoltaics
Subtopic: New Materials, Cells and Modules
Event: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany
Session: 1CV.3.41
 
Pages:
 
332 - 335
ISBN: 3-936338-25-6
Paper DOI: 10.4229/24thEUPVSEC2009-1CV.3.41
 
Price:
 
 
0,00 EUR
 
Document(s): paper
 

Abstract/Summary:


Several works have appeared in the literature as a result of the joint activity of Imperial College London with the European Solar Test Installation and other European research centres on luminescent solar concentrators: some have been specifically related to indoor and outdoor characterisation. Within the characterisation processes, the external quantum efficiency is particularly important: by means of external quantum efficiency measurements, spectral mismatch correction can be performed, enabling performance predictions for any given irradiance conditions. In recent works an increase in module efficiency due to a diffusive reflector at the backside of the concentrator has been shown. In this work we present recent results on the impact of a non-index-matched backside diffusive reflector on the external quantum efficiency of a luminescent solar concentrator and therefore on the short-circuit current of the device: the result is particularly relevant in view of using luminescent solar concentrators in building integration of photovoltaics.