Electrical studies of D%AgI-(100-D)%[0.667Ag2O- 0.333{(0.4)B2O3-(0.6)TeO2}] fast ion conducting glasses

Kumar, E. Ramesh; Rao, Puli Nageswar; Rao, B. Appa

doi:10.1088/1757-899x/149/1/012185

Cited by 4 publications

(4 citation statements)

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“…The reason for such lower DC conductivity of the present system may be due to different structure of CdO -V2O5 -P2O5 -ZnO network former. Lower DC Conductivity of the present system in comparison with B2O3 -TeO2 glassy systems [40,41] may indicate more thermal stability in wide range of composition [26]. Similarly, activation energy corresponding to DC conductivity for the present system is found to be higher than those for B2O3 -TeO2 glassy systems [37,40] as shown in Fig.…”

Section: Complex Impedance Plot and DC Conductivitymentioning

confidence: 56%

“…Comparison, DC Conductivity for AgI doped two different B2O3 -TeO2 glassy systems [40,41] have also been included in Fig. 5(a).…”

Section: Complex Impedance Plot and DC Conductivitymentioning

confidence: 99%

“…5(a). It is remarkably noted that both B2O3 -TeO2 glassy systems [40,41] show a gradual increment in DC Conductivity with AgI content. It is also pointed out that present glassy system exhibit much lower values of DC conductivity.…”

Section: Complex Impedance Plot and DC Conductivitymentioning

confidence: 99%

“…5(b). The different nature of AgI doped CdO -V2O5 -P2O5 -ZnO glassy system in terms of conductivity and associated activation energy from AgI doped B2O3 -TeO2 glassy systems [40,41] may appear from the dissimilarity in their structures as pointed out in the introduction section. It is also observed from Fig.…”

Section: Complex Impedance Plot and DC Conductivitymentioning

confidence: 99%

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Mixed conduction in iodovanadate glass-nanocomposites: DC conductivity, hopping frequency, and frequency response curves

Poddar,

Roy,

Ali

et al. 2024

Ionics

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Here, the system of amorphous semiconducting glassy system, xAgI -(1-x) (0.1CdO -0.3 V2O5 -0.4 P2O5 -0.2ZnO) with x = 0, 0.05, 0.1, 0.2, 0.3, 0.4has been developed. The gradual change in the size of various nanocrystallites such as VO2 , Zn2V2O7, V6O13, ZnV3O8 and P and the development of new phases of their combinations have been pronounced due to a gradual increase in AgI content. This may lead to the possible structural changes of the system under investigation. V-O-V vibration at lower energy may be responsible for weakening the covalent bond, which may be responsible for releasing vanadium ion to contribute more electron/ polaron. Correlated barrier hopping (CBH) model has been found to appropriate to predict the hopping conduction paths of charge carriers (or polarons) in pairs via current transfer between localized sites at the Fermi level. By incorporation of more and more AgI content in the composition, more bridging oxygen is expected to be formed in the composition and a strong covalent bonding between Ag + and O -2 may play dominating role for Ag + transport over polaron hopping. Double activation energy corresponding to DC conductivity in a wide range of temperature may be considered as the signature of mixed conduction process in the present system.Estimated values of frequency exponent (n) may be highlighted to validate this mixed conduction process. Percolation type of motion of polaron may be predicted from the higher values of n for the as-prepared samples with higher 2 AgIcontent. Similarly, three dimensional Ag + motion may be the dominating charge carriers for the samples with higher AgI content as evident from the moderate values of n.A schematic conduction model has been proposed to explain the nature of electrical conductivity in the present system.

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Section: Complex Impedance Plot and DC Conductivitymentioning

confidence: 56%

“…Comparison, DC Conductivity for AgI doped two different B2O3 -TeO2 glassy systems [40,41] have also been included in Fig. 5(a).…”

Section: Complex Impedance Plot and DC Conductivitymentioning

confidence: 99%

Section: Complex Impedance Plot and DC Conductivitymentioning

confidence: 99%

Section: Complex Impedance Plot and DC Conductivitymentioning

confidence: 99%

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