Boosting the Solar Water Oxidation Performance of Fe2O3 Photoanode via Embedding Laser‐Generated Pt Nanocrystals

α‐Fe[sub.2]O[sub.3] 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]O[sub.3] 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]O[sub.3] photoanode, which achieves photocurrent densities of up to 1.16 mA cm[sup.−2] at 1.23 V[sub.RHE] (from original 0.21 mA cm[sup.−2]). This work provides another way to promote the carrier transfer and separation of α‐Fe[sub.2]O[sub.3], which is of great significance to improve the photoelectrochemical water splitting performance.