Print Email Facebook Twitter A study on the optics of copper indium gallium (di)selenide (CIGS) solar cells with ultra-thin absorber layers Title A study on the optics of copper indium gallium (di)selenide (CIGS) solar cells with ultra-thin absorber layers Author Xu, M. Wachters, A.J.H. van Deelen, J. Mourad, M.C.D. Buskens, P.J.P. Publication year 2014 Abstract We present a systematic study of the effect of variation of the zinc oxide (ZnO) and copper indium gallium (di)selenide (CIGS) layer thickness on the absorption characteristics of CIGS solar cells using a simulation program based on finite element method (FEM). We show that the absorption in the CIGS layer does not decrease monotonically with its layer thickness due to interference effects. Ergo, high precision is required in the CIGS production process, especially when using ultra-thin absorber layers, to accurately realize the required thickness of the ZnO, cadmium sulfide (CdS) and CIGS layer. We show that patterning the ZnO window layer can strongly suppress these interference effects allowing a higher tolerance in the production process. © 2014 Optical Society of America. Subject Physics & Electronics Mechanics, Materials and StructuresOPT - Optics TFT - Thin Film Technology MIP - Materials for Integrated ProductsTS - Technical SciencesHigh Tech Systems & MaterialsElectronicsIndustrial InnovationCadmium sulfideCopperGalliumIndiumInterference suppressionProduction engineeringSolar cellsAbsorption characteristicsCIGS solar cellsInterference effectsLayer thicknessProduction processSimulation programSystematic studyZinc oxide (ZnO) To reference this document use: http://resolver.tudelft.nl/uuid:7a0955c7-9ffb-4394-b073-934b86057f63 TNO identifier 492955 Publisher Optical Society of America ISSN 1094-4087 Source Optics Express, 22 (5), A425-A437 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.