基于表面等离激元热载流子效应的光解水研究进展

Research Progress on Solar Water Splitting Based on Hot Carrier Effect of Surface Plasmon Polaritons

近年来,二氧化钛、氧化锌等半导体材料被广泛应用于光解水研究中。金属纳米结构激发的表面等离激元(SPP)热载流子效应能够有效地俘获入射光,进一步增强光能与化学能之间的转换效率,是提高半导体光解水性能的一种可行方法。合理地将金属纳米结构与半导体材料相结合,可以制备出高性能的光解水器件。首先介绍了半导体光解水以及SPP热载流子效应的基本原理,并以此为基础介绍了SPP增强型半导体光解水反应的物理机理。随后,依据半导体的形貌不同,总结了SPP热载流子效应用于不同纳米结构的研究进展。最后,对基于SPP热载流子效应的半导体光解水研究的发展趋势与挑战进行了展望。

In recent years, TiO2,ZnO and other semiconductor materials have been widely used in the study of solar water splitting.The surface plasmon polariton(SPP) hot carrier effects excited by metal nanostructures can effectively capture the incident light and further enhance the conversion efficiency of solar-to-chemical energy, offering a feasible approach to improve the performance of semiconductor solar water splitting.By properly combining metal nanostructures with semiconductor materials, high performance solar water splitting devices can be prepared.Firstly, the basic principles of the semiconductor solar water splitting and the SPP hot carrier effect are introduced, and on this basis, the physical mecha-nism of the SPP enhanced semiconductor solar water splitting reaction is introduced.Then, according to different morphologies of semiconductors, the research progresses of the SPP hot carrier effect applied to devices with different nanostructures are summarized.Finally, the development trends and challenges of semiconductor solar water splitting study based on the SPP hot carrier effect are prospected.