1. University of Duisburg‐EssenCenter for Semiconductor Technology and OptoelectronicsLotharstr. 5547057DuisburgGermany
2. University of Duisburg‐EssenInterdisciplinary Center for Analytics on the NanoscaleCarl‐Benz‐Str. 19947057DuisburgGermany
3. Johannes Gutenberg University MainzInstitute of Organic ChemistryDuesbergweg 10–1455128MainzGermany