Dielectric 8-relaxation signal

Figure 4. Dependence of capacity C on 7 for CCI4 in multi-walled caibon nanotubes with average pore diaineter of 5 nm (10 nm average external diameter), from dielectric relaxation spectroscopy. Symbols represent results obtained at different fiequencies circles, 30 IcHz squares, 100 kHz and triangles, 600kHz. The signals are for both bulk and confined CCI4.

Fig. 16.4 Correlation between the fluorescence lifetime rp and the longitudinal dielectric relaxation time, TL (Eq. (15.19)) of 6-A -(4-methylphenylamino-2-naphthalene-sulfonW,iV-dimethylaniide) (TNSDMA) and 4-N, A-dimethylaminobenzonitrile (DMAB) in linear alcohol solvents. The fluorescence signal is used to monitor an electron transfer process that precedes it. The line is drawn with a slope of 1. (From E. M. Kosower and D. Huppert, Ann. Rev. Phys. Chem. 37,127 (1986) see there for original publications.)...

However, the main method for studying dielectric relaxation is not based on large signals but on small amplitude AC signals in the frame of forced relaxation. The classical and basic approach makes three restrictions ... 

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