1. Laboratory of Inorganic Chemistry Department of Chemistry and Applied Biosciences ETH Zurich CH-8093 Zürich Switzerland
2. Laboratory for Thin Films and Photovoltaics Swiss Federal Laboratories for Materials Science & Technology CH-8600 Dübendorf Switzerland
3. Functional Polymers Swiss Federal Laboratories for Materials Science & Technology CH-8600 Dübendorf Switzerland
4. Department of Materials ETH Zurich CH-8092 Zürich Switzerland