Fast ionic transport in SrTiO3/LaAlO3 heterostructure

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

doi:10.1039/D2CC05205A

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Fast ionic transport in SrTiO₃/LaAlO₃ heterostructure†

Quan Shi,‡^a Haijian Zhong,‡^b Ming Huang,

^c Bin Zhu,^a Liwen Huang^a and Yan Wu

*^a

Author affiliations

* Corresponding authors

^a 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
E-mail: wuyan@cug.edu.cn

^b School of Medical and Information Engineering, Gannan Medical University, Ganzhou 341000, China

^c Faculty of Physics and Electronic Sciences, Hubei University, Wuhan 430062, China

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.

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Article information

DOI: https://doi.org/10.1039/D2CC05205A
Article type: Communication
Submitted: 24 Sep 2022
Accepted: 17 Nov 2022
First published: 29 Nov 2022

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Chem. Commun., 2022,58, 13919-13922

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Fast ionic transport in SrTiO₃/LaAlO₃ heterostructure

Q. Shi, H. Zhong, M. Huang, B. Zhu, L. Huang and Y. Wu, Chem. Commun., 2022, 58, 13919 DOI: 10.1039/D2CC05205A

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Chemical Communications