The migration of alkali metal (Na + , Li + , and K + ) ions in single crystalline vanadate nanowires: Rasch-Hinrichsen resistivity

Yejung Lee, Byeong Uk Ye, Dong Kyu Lee, Jeong Min Baik, Hak Ki Yu, Myung Hwa Kim

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

We report the synthesis of single crystalline alkali metal vanadate nanowires, Li-vanadate (Li 4 V 10 O 27 ), Na-vanadate (NaV 6 O 15 ), and K-vanadate (KV 4 O 10 ) and their electrical properties in a single nanowire configuration. Alkali metal vanadate nanowires were obtained by a simple thermal annealing process with vanadium hydroxides(V(OH) 3 ) nanoparticles containing Li + , Na + , and K + ions and further the analysis of the migration of charged particles (Li + , Na + , and K + ) in vanadate by measuring the conductivity of them. We found that their ionic conductivities can be empirically explained by the Rasch-Hinrichsen resistivity and interpreted on the basis of transition state theory. Our results thus indicate that the Li ion shows the lowest potential barrier of ionic conduction due to its small ionic size. Additionally, Na-vanadate has the lowest ion number per unit V 2 O 5 , resulting in increased distance to move without collision, and ultimately in low resistivity at room temperature.

Original languageEnglish
Pages (from-to)516-520
Number of pages5
JournalCurrent Applied Physics
Volume19
Issue number4
DOIs
StatePublished - Apr 2019

Bibliographical note

Funding Information:
This research was supported by the Basic Science Research Program through the National Research Foundation (NRF) of Korea funded by the Ministry of Science, ICT & Future Planning ( NRF-2016R1C1B1009030 and 2016R1D1A1B03934962 ) and by Basic Science Research Program through the National Research Foundation of Korea (NRF) by the Ministry of Education ( NRF-2018R1A6A1A03025340 ).

Funding Information:
This research was supported by the Basic Science Research Program through the National Research Foundation (NRF) of Korea funded by the Ministry of Science, ICT & Future Planning (NRF-2016R1C1B1009030 and 2016R1D1A1B03934962) and by Basic Science Research Program through the National Research Foundation of Korea (NRF) by the Ministry of Education (NRF-2018R1A6A1A03025340).

Publisher Copyright:
© 2019 Korean Physical Society

Keywords

  • Alkali metal vanadate
  • Ionic conductivity
  • Nanowires
  • Rasch-Hinrichsen resistivity

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