表面等离激元热电子超快动力学研究进展

发布时间：2018-05-29 18:56

本文选题：表面光学 + 表面等离激元　；参考：《激光与光电子学进展》2017年03期

【摘要】：表面等离激元因具有能突破光学衍射极限、表面局域性和近场增强等奇特的光学性质,被广泛应用于光伏、光催化和光电探测等研究领域。将具有高效光捕获特性的表面等离激元与传统半导体器件相结合,可以极大地提高传统半导体器件的效率,具有重要的应用价值。由局域表面等离激元弛豫产生的热电子是将太阳能转化为电能或化学能的关键,因此从微观上研究表面等离激元热电子的产生及弛豫过程对于设计高效率表面等离激元纳米光电器件具有重要意义。综述了表面等离激元热电子的激发及其在金属-半导体材料界面处的超快动力学过程的研究进展,分析了目前存在的主要问题并对其未来的发展前景进行了展望。
[Abstract]:Due to their unique optical properties such as breaking through the limit of optical diffraction, surface localization and near-field enhancement, surface isoexcitators have been widely used in photovoltaic, photocatalytic and photoelectric detection fields. The efficiency of traditional semiconductor devices can be greatly improved by combining the surface isoexcitators with the traditional semiconductor devices with high efficiency. It has important application value. The hot electrons produced by the local surface isotherm relaxation are the key to convert solar energy into electric energy or chemical energy. Therefore, it is very important to study the generation and relaxation process of surface isobaric thermal electrons from the microcosmic point of view for the design of high efficient surface isophosphoric nano-optoelectronic devices. In this paper, the research progress on the excitation of surface isophosphoric hot electrons and their ultrafast kinetics at the interface of metal-semiconductor materials are reviewed. The main existing problems are analyzed and the prospect of their future development is prospected.
【作者单位】：北京大学物理学院人工微结构和介观物理国家重点实验室;
【基金】：国家973计划(2015CB932403) 国家自然科学基金(61422501,11674012,11374023,61521004) 北京市自然科学基金(L140007) 教育部全国优秀博士学位论文专项基金(201420) 国家万人计划青年拔尖人才专项基金
【分类号】：O485

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