DC electrical conductivity, thermoelectric power measurements of TiO2-substituted lead vanadate glasses

Temperature and frequency dependent conductivity and electric modulus formulation of manganese modified bismuth silicate glasses

“…and its values come out to be of the order of 10 21 eV −1 cm −3 as given in Table 2, which are reasonable for localized states [41,42].…”

Investigation of structural, optical and transport properties of MoO3–PbO–B2O3 glasses

“…The nature of polaron hopping mechanisms (adiabatic or non-adiabatic) of these glasses could be estimated by various experimental aspects. If the graph between logarithm of conductivity at a given experimental temperature and the activation energy is linear, hopping is adiabatic [28]. If there is any deviation in the linearity (non-linear), the hopping is supposed to be non-adiabatic [29].…”

Temperature independent Seebeck coefficient through quantum confinement modulation in amorphous Nb-O/Ni-Ta-O multilayers

“…These authors have argued that solids with the phonon mean free path larger than that of charge carriers exhibit an enhanced thermoelectric efficiency in energy generation, cooling, and sensing applications, which may be realized in amorphous compounds [15]. This was demonstrated for several amorphous systems, such as NbO 2 [16,17], ZnO [18], In-Ga-Zn-O [19], ZnSnO 3 [20], In 2 MgO 4 [21], Cu-Ge-Te [22], Zr-Ni-Sn [23], Ge-Au [24], Si-Au [24], and TiO 2 -PbO-V 2 O 5 [25]. Other related properties, such as electrochemical, may also be enhanced by forming amorphous solids instead of their crystalline counterparts, as reported for amorphous NbO x [26].…”