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      Spatially and spectrally resolved electroluminescence measurement system for photovoltaic characterisation

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          Abstract

          A system that combines the advantages of fast global electroluminescence (EL) imaging and detailed spectrally resolved EL measurements is presented. A charge-coupled device camera-based EL imaging system is used to measure the intensity of radiative recombination of the photovoltaic (PV) device spatially resolved over its full area. A monochromator-based system is utilised to measure localised emission spectra at given points of interest. Measurements of multi-crystalline and amorphous silicon PV devices demonstrate the potential to investigate radiative defects and reveal performance variations and non-uniformities. This links inhomogeneities much closer to device physics than using camera-based EL only.

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          Most cited references 23

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          Diffusion lengths of silicon solar cells from luminescence images

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            Photographic surveying of minority carrier diffusion length in polycrystalline silicon solar cells by electroluminescence

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              Absorptivity of silicon solar cells obtained from luminescence

               T. Trupke (1998)
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                Author and article information

                Contributors
                Journal
                IET-RPG
                IET Renewable Power Generation
                IET Renew. Power Gener.
                The Institution of Engineering and Technology
                1752-1416
                1752-1424
                July 2015
                : 9
                : 5
                : 446-452
                Affiliations
                Centre for Renewable Energy Systems Technology (CREST), School of Electronic, Electrical and Systems Engineering, Loughborough University , Loughborough, LE11 3TU, Leicestershire, UK
                Article
                IET-RPG.2014.0366 RPG.SI.2014.0366.R1
                10.1049/iet-rpg.2014.0366

                This is an open access article published by the IET under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/)

                Product
                Funding
                Funded by: Research Councils UK
                Award ID: EP/H040331/1
                Categories
                Special Issue on 10th Photovoltaic Science, Application and Technology Conference (PVSAT-10)

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