1. Laboratory of Photonics and Interfaces; Institute of Chemical Sciences and Engineering; École Polytechnique Fédérale de Lausanne (EPFL); Lausanne CH-1015 Switzerland
2. Advanced Research division; Materials and Devices Research Laboratory; Panasonic Corporation; Kadoma City Osaka 571-8501 Japan
3. Laboratory of Photomolecular Science; Institute of Chemical Sciences and Engineering; École Polytechnique Fédérale de Lausanne; Lausanne CH-1015 Switzerland
4. Dyesol UK; UMIC; Incubator Building; University of Manchester; 48 Grafton St. M13 9XY UK
5. Cristal Technology and Innovation Group; La Porte Road Stallingborough Grimsby DN40 2PR UK