TY  - JOUR
AU  - Ivetić, Tamara B.
AU  - Xia, Yang
AU  - Benzine, Omar
AU  - Petrović, Jelena
AU  - Papan, Jelena
AU  - Lukić-Petrović, Svetlana R.
AU  - Litvinchuk, Alexander P.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9691
AB  - Resultsof Electrochemical Impedance Spectroscopy (EIS) are reported for lithium-niobium-titanium-oxide (LNTO) ceramics synthesized by a solid-state reaction method with two functional additives (MoO3 or ZnO) in the temperature range 323 K - 573 K and frequencies between 10−1 Hz and 107 Hz. Scanning electron microscopy (SEM) reveals a textured morphology of rod and plate-like particles that are typical for M-phase LNTO materials, while X-ray diffraction (XRD) analysis confirms the formation of an M-phase member compound with an approximate structure of Li7Nb3Ti5O21. Complex impedance analysis indicates that its overall electrical resistivity behavior depends mostly on the grain boundary processes. EIS analysis shows a negative temperature coefficient of resistance behavior (NTCR) in a defined temperature range in two LNTOs and thermal activation of the conduction mechanisms. The low dielectric constants of 5.5 and 12.1 at 1 MHz were found for the first and second LNTOs, respectively. Complimentary Raman spectroscopic measurements, despite very large crystallographic unit cell of LNTO, reveal only a small number of lines, which is the consequence of a “molecular” nature of materials.
T2  - Ceramics International
T1  - Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology
VL  - 47
IS  - 4
SP  - 4944
EP  - 4953
DO  - 10.1016/j.ceramint.2020.10.070
ER  - 

@article{
author = "Ivetić, Tamara B. and Xia, Yang and Benzine, Omar and Petrović, Jelena and Papan, Jelena and Lukić-Petrović, Svetlana R. and Litvinchuk, Alexander P.",
year = "2021",
abstract = "Resultsof Electrochemical Impedance Spectroscopy (EIS) are reported for lithium-niobium-titanium-oxide (LNTO) ceramics synthesized by a solid-state reaction method with two functional additives (MoO3 or ZnO) in the temperature range 323 K - 573 K and frequencies between 10−1 Hz and 107 Hz. Scanning electron microscopy (SEM) reveals a textured morphology of rod and plate-like particles that are typical for M-phase LNTO materials, while X-ray diffraction (XRD) analysis confirms the formation of an M-phase member compound with an approximate structure of Li7Nb3Ti5O21. Complex impedance analysis indicates that its overall electrical resistivity behavior depends mostly on the grain boundary processes. EIS analysis shows a negative temperature coefficient of resistance behavior (NTCR) in a defined temperature range in two LNTOs and thermal activation of the conduction mechanisms. The low dielectric constants of 5.5 and 12.1 at 1 MHz were found for the first and second LNTOs, respectively. Complimentary Raman spectroscopic measurements, despite very large crystallographic unit cell of LNTO, reveal only a small number of lines, which is the consequence of a “molecular” nature of materials.",
journal = "Ceramics International",
title = "Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology",
volume = "47",
number = "4",
pages = "4944-4953",
doi = "10.1016/j.ceramint.2020.10.070"
}

Ivetić, T. B., Xia, Y., Benzine, O., Petrović, J., Papan, J., Lukić-Petrović, S. R.,& Litvinchuk, A. P.. (2021). Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology. in Ceramics International, 47(4), 4944-4953.
https://doi.org/10.1016/j.ceramint.2020.10.070

Ivetić TB, Xia Y, Benzine O, Petrović J, Papan J, Lukić-Petrović SR, Litvinchuk AP. Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology. in Ceramics International. 2021;47(4):4944-4953.
doi:10.1016/j.ceramint.2020.10.070 .

Ivetić, Tamara B., Xia, Yang, Benzine, Omar, Petrović, Jelena, Papan, Jelena, Lukić-Petrović, Svetlana R., Litvinchuk, Alexander P., "Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology" in Ceramics International, 47, no. 4 (2021):4944-4953,
https://doi.org/10.1016/j.ceramint.2020.10.070 . .