March 18, 2019
Journal Article

Erratum: "Band alignment and electrocatalytic activity at the p-n La0.88Sr0.12FeO3/SrTiO3(001) heterojunction" [Appl. Phys. Lett. 112, 261601 (2018)]

Abstract

Ferrite perovskites have exhibited promising p-type conductivity and oxygen evolution reaction (OER) activity. In this work, we investigate heteroepitaxial p-n junctions formed by La0.88Sr0.12FeO3 and n-SrTiO3(001). Sr substitution for La in LaFeO3 is shown to be effective for introducing p-type conductivity, lowering the optical bandgap, and enhancing electrocatalytic OER. A staggered, type-II band alignment with a large built-in potential within the LSFO forms due to the polar interface. This electronic structure facilitates charge transfer across the p-n junction and accounts for the strongly thickness-dependent extent of OER we observe.

Revised: October 14, 2020 | Published: March 18, 2019

Citation

Wang L., Y. Du, L. Chang, K.A. Stoerzinger, M.E. Bowden, J. Wang, and S.A. Chambers. 2019. Erratum: "Band alignment and electrocatalytic activity at the p-n La0.88Sr0.12FeO3/SrTiO3(001) heterojunction [Appl. Phys. Lett. 112, 261601 (2018)]." Applied Physics Letters 114, no. 11:Article No. 119901. PNNL-SA-143811. doi:10.1063/1.5094172