Abstract
Ionic conductivity of Ag2+ and Cu2+ ion conducting different glass nanocomposite systems have been presented in this chapter. The particle size and the distribution of different nanoparticles in different systems have been evaluated by X-ray diffraction and high resolution transmission electron microscopic studies. Electrical conductivity of the glass nanocomposites has been investigated in a wide frequency and temperature range. The contribution of ion concentration and the mobility from the measured conductivity and the local environment of mobile ions, which contains the information about the most likely migration pathways, are the key interests for the study. The AC conductivity data have been analyzed using a power law model. It has been observed that mobile ion concentration is slightly dependent upon composition, but independent of temperature. The scaling of the conductivity spectra shows temperature-independent electrical relaxation process. It is also observed that the conductivity relaxation process depends upon the size of developed nanoparticles embedded in the host glass matrix. The variation of conductivity relaxation time and stretched exponent is correlated with their structure. The scaling of the electric modulus spectra also reveals that the ionic relaxation process is independent of temperature but depends on composition.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
