Characteristics of MFE of Py-DMA system in THF-DMF binary solvents Characteristics of MFE of Py-DMA system inBz-ACN binary solvents
1. Maximum MFE is on the order of 11%. 1. Maximum MFE is slightly less, on the order of 10.5%.
2. MFE vs bulk permittivity signature is distinctly different for Relaxed and Un-relaxed species of exciplexes. 2. MFE vs bulk permittivity signature is almost identical for Relaxed and Un-relaxed species of exciplexes.
3. Peak value of MFE for Relaxed species occurs at ε~15.5 and that for Un-relaxed species occurs at slightly lower value of ε~14.5 3. Peak value of MFE for both type of species occur around the same permittivity on the order of 16.7.
4. MFE of Un-relaxed species falls sharply at higher permittivity than MFE in Relaxed species. 4. MFE of both the species follows the same graph.
5. ET in Relaxed species is greater than that in Un-relaxed species. 5. Extent of ET is identical in both species and it is larger than that in THF-DMF mixtures.
Table 3: Comparison of MFE characteristics of Py-DMA system in THF-DMF and Bz-ACN binary solvents. The difference is mainly caused by the facilitating effect of π cloud of benzene molecule in ET process.