TY - GEN A1 - Khropost, Diana A1 - Döhring, Thorsten A1 - Riethmüller, Franziska A1 - Hülagü, Deniz T1 - Poly-dopamine - an organic material for X-ray mirror coatings and other technical applications T2 - AXRO 2024 - 15th International Conference on Astronomical X-Ray Optics N2 - Although the organic molecule dopamine (3,4-dihydroxyphenethylamine) is commonly known as the “hormone of happiness”, thin polymer films of poly-dopamine also have interesting technical properties. When produced by dip coating, these self-organizing layers grow in a reproducible thickness of single or multiple molecule monolayers of a few nanometre thickness only. One application is the use of thin poly-dopamine overcoatings to increase the soft X-ray reflectivity of astronomical X-ray mirrors. We thereby introduce a method of determining the layer thickness of poly-dopamine, which is based on spectroscopic ellipsometry measurements and applies an optical model for the poly-dopamine layers including their dielectric function. Furthermore, we give an outlook to other technical applications for this promising material, presenting this bio-inspired organic polymer as an innovative technical solution for the future. N2 - Poster KW - poly-dopamine KW - X-ray mirror KW - X-ray astronomy KW - ellipsometry KW - thin layers KW - Röntgenspiegel Y1 - 2024 VL - 2024 SP - 1 EP - 1 ER -