1. Laboratory of Photomolecular Science; Ecole Polytechnique Fédérale de Lausanne; Station 6 CH-1015 Lausanne Switzerland
2. Group for Molecular Engineering of Functional Materials; EPFL Valais Wallis; Rue de l'industrie 17 CH-1951 Sion Switzerland
3. Laboratory of Photonics and Interfaces; Ecole Polytechnique Fédérale de Lausanne; Station 6 CH-1015 Lausanne Switzerland
4. Interdisciplinary Centre for Electron Microscopy; Ecole Polytechnique Fédérale de Lausanne; Station 12, CH-1015 Lausanne Switzerland