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Wiley Small Science 4(5)
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    초록·키워드

    α-Fe<sub>2</sub>O<sub>3</sub> with suitable band structure, good chemical stability, and easy preparation, is a potential photoanode material. However, the key to enhance the performance of α-Fe<sub>2</sub>O<sub>3</sub> photoanode is to improve the transport characteristics of bulk carriers. It is expected to form a Schottky barrier to improve the carrier separation efficiency by embedding metal nanoparticles into the matrix, but the process is still challenging. Herein, a strategy of forming the Schottky barrier is shown to improve bulk carrier transport dynamics by embedding laser-generated Pt nanocrystals in α-Fe<sub>2</sub>O<sub>3</sub> photoanode, which achieves photocurrent densities of up to 1.16 mA cm<sup>-2</sup> at 1.23 V<sub>RHE</sub> (from original 0.21 mA cm<sup>-2</sup>). This work provides another way to promote the carrier transfer and separation of α-Fe<sub>2</sub>O<sub>3</sub>, which is of great significance to improve the photoelectrochemical water splitting performance.

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