BLISS, M. ...et al., 2016. Development of a solar cell spectral response mapping system using multi-LBIC excitation. Presented at: The 12th Photovoltaic Science, Application and Technology Conference, 6th-8th April 2016, Liverpool University.
This work presents a new multi-laser LBIC measurement system that is currently under development at CREST. The final set-up uses 11 lasers, 6 of which are currently operational, to form a spatially resolved spectral response map of the device under test. The design aspects of the measurement system are detailed and first measurements of a crystalline and amorphous silicon solar cell are demonstrated. Measurements show how a crack in a crystalline silicon solar cells affects the local quantum efficiency and the effects of discoloration in amorphous silicon. Thus, highlighting the advantages in multi-wavelength and absorption depth profiling of device performance and defects.
This conference paper is available here with the kind permission of the Solar Energy Society.
This work was supported by the UK Engineering and Research Council through the PVteam project EP/L017792/1: Photovoltaic Technology based on Earth Abundant Materials.