Plasmon-induced hot electrons in nanostructured materials: generation, collection, and application to photochemistry. Li Zhou, Qijia Huang, and Younan Xia. Chem. Rev. 2024, 124, 8597–8619. This review discusses the generation and utilization of plasmon-induced hot electrons in hybrid nanostructures. Plasmon-induced hot electrons are generated through nonradiative decay of plasmons and can be collected by functional materials to facilitate photochemical processes. The review covers the fundamentals of hot-electron generation and decay in plasmonic nanocrystals, methods for collecting hot electrons, and strategies for fabricating hybrid nanostructures. It also discusses the role of plasmonic metals and heavily doped semiconductors in hot-electron generation and the importance of site-selected growth for rational fabrication. The review highlights the potential of plasmon-induced hot electrons in photovoltaics, photodetection, and photocatalysis. It also addresses the challenges and opportunities in the application of plasmon-induced hot electrons, including the distinction between hot-electron transfer and photothermal heating. The review emphasizes the importance of understanding the fundamental mechanisms of hot-electron generation and decay, as well as the experimental parameters that can be controlled to tailor the properties of hybrid nanostructures for various applications. The review also discusses the role of plasmonic nanocrystals in photocatalysis, including the use of plasmonic nanocrystals as light-harvesting antennas and the integration of plasmonic nanocrystals with functional materials for efficient energy conversion. The review highlights the potential of plasmon-induced hot electrons in enabling efficient and selective chemical reactions, as well as in improving the performance of light-driven devices. The review also discusses the challenges in separating the effects of photothermal heating and hot-electron transfer in plasmonic photocatalysis. The review concludes with a discussion of the future directions in the field of plasmon-induced hot electrons in nanostructured materials.Plasmon-induced hot electrons in nanostructured materials: generation, collection, and application to photochemistry. Li Zhou, Qijia Huang, and Younan Xia. Chem. Rev. 2024, 124, 8597–8619. This review discusses the generation and utilization of plasmon-induced hot electrons in hybrid nanostructures. Plasmon-induced hot electrons are generated through nonradiative decay of plasmons and can be collected by functional materials to facilitate photochemical processes. The review covers the fundamentals of hot-electron generation and decay in plasmonic nanocrystals, methods for collecting hot electrons, and strategies for fabricating hybrid nanostructures. It also discusses the role of plasmonic metals and heavily doped semiconductors in hot-electron generation and the importance of site-selected growth for rational fabrication. The review highlights the potential of plasmon-induced hot electrons in photovoltaics, photodetection, and photocatalysis. It also addresses the challenges and opportunities in the application of plasmon-induced hot electrons, including the distinction between hot-electron transfer and photothermal heating. The review emphasizes the importance of understanding the fundamental mechanisms of hot-electron generation and decay, as well as the experimental parameters that can be controlled to tailor the properties of hybrid nanostructures for various applications. The review also discusses the role of plasmonic nanocrystals in photocatalysis, including the use of plasmonic nanocrystals as light-harvesting antennas and the integration of plasmonic nanocrystals with functional materials for efficient energy conversion. The review highlights the potential of plasmon-induced hot electrons in enabling efficient and selective chemical reactions, as well as in improving the performance of light-driven devices. The review also discusses the challenges in separating the effects of photothermal heating and hot-electron transfer in plasmonic photocatalysis. The review concludes with a discussion of the future directions in the field of plasmon-induced hot electrons in nanostructured materials.