Fast ionic transport in SrTiO3/LaAlO3 heterostructure

Quan Shi; Haijian Zhong; Ming Huang; Bin Zhu; Liwen Huang; Yan Wu

doi:10.1039/d2cc05205a

Fast ionic transport in SrTiO₃/LaAlO₃ heterostructure

Chem Commun (Camb). 2022 Dec 15;58(100):13919-13922. doi: 10.1039/d2cc05205a.

Authors

Quan Shi¹, Haijian Zhong², Ming Huang³, Bin Zhu¹, Liwen Huang¹, Yan Wu¹

Affiliations

¹ Engineering Research Center of Nano-Geo Materials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, 388 Lumo Road, Wuhan 430074, China. wuyan@cug.edu.cn.
² School of Medical and Information Engineering, Gannan Medical University, Ganzhou 341000, China.
³ Faculty of Physics and Electronic Sciences, Hubei University, Wuhan 430062, China.

PMID: 36445267
DOI: 10.1039/d2cc05205a

Abstract

SrTiO₃/LaAlO₃ heterostructures were constructed, which achieved a high ionic conductivity of 0.24 S cm^-1 and fuel cell power output of 675 mW cm^-2 at 520 °C. Theoretical calculations and experimental determinations found that the resultant built-in electric field plays an important role in fast ionic conduction through the interface with the electron accumulation layer in the interface region.