Modelling and Optimization of CIGS Modules
2007 (English)Conference paper (Refereed)
A computer model for Cu(In,Ga)Se2 (CIGS) based, monolithic solar cell modules was derived and calibrated using measurement data from an actual mini-module with an aperture area of 80 cm2. Simulations using this model accurately reproduce the measurement results on mini-modules with different cell widths to within ±3% of the parameters Voc, Isc, fill-factor and efficiency. The optical and electrical properties of the transparent front-contact were obtained from quantum efficiency measurements on a series of solar cells with ZnO:Al layers of different thicknesses and incorporated into the model. Finally, computer simulations were used to optimize CIGS thin-film modules for the application in low-concentrating systems. Aperture area efficiencies exceeding 14% at up to 10x concentration are predicted by the simulations for CIGS thin-film modules with cell widths of w = 2 mm. These simulation results are supported by preliminary measurements.
Place, publisher, year, edition, pages
München: WIP-Renewable Energies , 2007. 1922-1925 p.
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:uu:diva-12390ISBN: 9783936338225OAI: oai:DiVA.org:uu-12390DiVA: diva2:40159
22nd EU PVSEC, 22nd European Photovoltaic Solar Energy Conference, in Milan, Italy, 3-7 September 2007