In this work, BaTiO3 films are prepared under different temperature via magnetron sputtering method, and structural, optical and electrochemical properties are investigated. The optical absorption, bandgap, and electrocatalytic oxygen evolution reaction performance of thin film samples exhibit strong temperature dependence. The sample exhibits a higher absorption value and a lower overpotential η=372.6 mV, and has a lower band gap of 3.1 eV. This study contributes to exploring and revealing the correlation between ferroelectricity and electrocatalysis, providing insights for the preparation and research of ferroelectric oxide catalysts.

中文翻译：

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磁控溅射钙钛矿铁电 BaTiO [公式省略] 作为电催化剂：形态、表面化学状态、OER 活性、光学和电学性质


本工作通过磁控溅射法制备了不同温度下的 BaTiO3 薄膜，并研究了其结构、光学和电化学性能。薄膜样品的光吸收、带隙和电催化析氧反应性能表现出很强的温度依赖性。该样品表现出更高的吸收值和更低的过电位 η=372.6 mV，并且具有 3.1 eV 的较低带隙。本研究有助于探索和揭示铁电与电催化之间的相关性，为铁电氧化物催化剂的制备和研究提供见解。