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Interface engineering and Oxygen vacancy control in SrTiO₃-TiO₂ eutectics
Citation Link: https://doi.org/10.15480/882.16236
Publikationstyp
Journal Article
Date Issued
2025
Sprache
English
Author(s)
Hou, Zhiwei
Guo, Yefei
TORE-DOI
Journal
Citation
Advanced Materials Interfaces (in Press): (2025)
Publisher DOI
Scopus ID
Publisher
Wiley
The development of highly efficient semiconducting materials is essential for achieving the high-yield and stable hydrogen and/or oxygen evolution reactions (HER/OER) in photoelectrochemical (PEC) water splitting reactions. The SrTiO₃-TiO₂ eutectic compound has recently emerged as a perspective material with extraordinary activities in the PEC field due to the unique crystallographic and electronic properties caused by the large number of oxygen vacancies in the bulk. In the present study, different experimental techniques (XPS, SEM/EDX, TEM/EDX) are used to provide a detailed investigation of the changes in the structural and electronic properties of the SrTiO<inf>3</inf>-TiO<inf>2</inf> eutectic upon annealing under various gaseous environments (in vacuum, air, oxygen, argon). These results demonstrate that thermal annealing in different environments significantly enhances the formation of a sharp interface between the two crystalline phases and allows to control the concentration of the oxygen vacancies within the eutectic material.
Subjects
EDX
eutectic
SEM
semiconductor
TEM
XPS
DDC Class
620.11: Engineering Materials
More Funding Information
The authors thank the National Natural Science Foundation of China (Grant No. 22272104) for financial support. Y.D. acknowledges the project Centre for Advanced Laser Techniques (CALT), co-funded by the European Union through the European Regional Development Fund under the Competitiveness and Cohesion Operational Programme (Grant No. KK.01.1.1.05.0001).
Open access publishing facilitated by Institut Ruder Boskovic, as part of the Wiley - National and University Library in Zagreb Consortium Croatian Academic and Research Libraries Consortium agreement.
Open access publishing facilitated by Institut Ruder Boskovic, as part of the Wiley - National and University Library in Zagreb Consortium Croatian Academic and Research Libraries Consortium agreement.
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Adv Materials Inter - 2025 - Hou - Interface Engineering and Oxygen Vacancy Control in SrTiO3‐TiO2 Eutectics.pdf
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