Meiners, B.-M.B.-M.MeinersHolinski, S.S.HolinskiSchäfer, P.P.SchäferHohage, S.S.HohageBorchert, DietmarDietmarBorchert2022-03-125.11.20142014https://publica.fraunhofer.de/handle/publica/38547610.4229/EUPVSEC20142014-2AV.3.2210.24406/publica-r-385476High-efficiency silicon heterojunction solar cells, like the Panasonic HIT cell [1], use transparent conductive oxides (TCO) as anti-reflection layers. We investigated whether a single TCO layer or a two layers ARC stack is the better option for such a cell. Therefore we simulated the reflection and transmission properties of single indium tin oxide (ITO)-layers with various optical constants and layer systems with two different anti-reflection coatings (ARC). We also calculated the short-circuit current density (Jsc) for these systems. We found out that with a second anti-reflection layer the standard weighted reflectance (SWR) can be reduced by 5 % compared to single layers coatings. The best calculated Jsc for non-textured surfaces was 35.7 mA/cm2. With a texture we consider an additional Jsc gain of approx. 3 mA/cm2 approaching 39 mA/cm2.enPV Produktionstechnologie und QualitätssicherungSilicium-Photovoltaikamorphe Silicium-StapelsolarzelleheterojunctionTCOpropertiesmodellingcoatingconference paper