3.2. TDA and TG analyses
Thermogravimetric analysis of [Eu2(phen)2(PFbz)6] is shown in Fig. 3. Thermal decomposition of the complex starts around 275 °C with a mass loss of about 20% which corresponds to the decomposition of the phenanthroline ligand [33]. It continues with the degradation of the benzoic acid and ends up with the formation of Eu2O3 above 800 °C [34]. The compound shows a large thermal stability because of the absence of crystal water and other volatile molecules. Furthermore, the organic components (phenanthroline and fluorobenzoate) are very resistant to degradation. Therefore, the Eu-based PMMA layer can be placed on the glass in any step of the module assembly of crystalline silicon solar cells, as the whole standard assembly process is produced at temperatures below 200 °C [35].