[20p-A304-1~8] Emerging functionalities of oxides and chalcogenides in iontronics

3:00 PM - 3:30 PM JST(6:00 AM - 6:30 AM UTC)

[20p-A304-5] Control of electrical conduction based on protonated strongly correlated nickel oxides and their resistive switching device application

〇Haobo Li¹, Hidekazu Tanaka¹ (1.Osaka Univ. SANKEN)

Keywords:

Strongly correlated oxides,Resistance switching,Ionic manipulation

In this research, we synthesized series epitaxial thin films of nickelate perovskite oxides ReNiO₃ (Re = Nd, Sm, Eu). By combining the electrochemical impedance spectroscopy and optical observation, the ionic conductivity is evaluated. Based on the above results, the stack-type resistance switching device based on H_xEuNiO₃ is designed and the response speed is 3 orders faster than reported oxygen type devices. As perspective towards energy harvesting, the thermal conductivity regulation based on protonated ReNiO₃ will be also introduced.