[1] Univ Angers, Lab MOLTECH Anjou, CNRS UMR 6200, 2 Blvd Lavoisier, F-49045 Angers, France
[2] Univ Lille, Lab Spectrochim & Raman, CNRS UMR 8516, LASIR, BP83, F-59006 Lille, France
[3] Univ Bordeaux, Inst Sci Mol, 351 Cours Liberat, F-33405 Talence, France