Steiner, MarcMarcSteinerSiefer, GeraldGeraldSieferSchmidt, ThomasThomasSchmidtWiesenfarth, MaikeMaikeWiesenfarthDimroth, FrankFrankDimrothBett, Andreas W.Andreas W.Bett2022-03-052022-03-052016https://publica.fraunhofer.de/handle/publica/24488610.1109/JPHOTOV.2016.2551460A concentrator standard test condition (CSTC) efficiency of 43.4% for the direct conversion of sunlight into electricity is demonstrated with a subunit of a concentrator photovoltaics (CPV) module. This is the highest reported CSTC efficiency for CPV applications thus far. This test device consists of a four-junction solar cell and uses an achromatic full-glass lens for concentrating the sunlight. The high efficiency is made possible by the combination of a high-efficiency solar cell (46%) and a high-efficiency lens (95%). The I-V curve of the solar cell has been measured for varying distances to the glass lens and compared with the results for a silicone-on-glass Fresnel lens. In this manner, chromatic aberration effects on solar cell performance are discussed in this study.enMaterialien - Solarzellen und TechnologieIII-V und Konzentrator-PhotovoltaikIII-V Epitaxie und Solarzellenmulti-junction concentrator cellcharacterizationhigh efficiencyfresnel lensfull-glass lens621697journal article