1. Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP)Technische Universität Dresden 01062 Dresden Germany
2. Korea Research Institute of Standards and Science (KRISS) 267 Gajeong‐ro Yuseong‐gu Daejeon 34113 Republic of Korea
3. Leibniz‐Institut für Polymerforschung Dresden e. V. (IPF) 01069 Dresden Germany
4. Institute of Ion Beam Physics and Materials Research Helmholtz‐Zentrum Dresden‐Rossendorf 01328 Dresden Germany