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1.北京交通大学物理科学与工程学院 光电子技术研究所, 北京 100044
2.美国堪萨斯大学 物理与天文学系, 堪萨斯州 劳伦斯市 66045
[ "何大伟(1961-),男,黑龙江哈尔滨人,博士,教授,博士生导师,1998年于中国科学院长春物理研究所获得博士学位,主要从事复合发光的动力学、能量传递、瞬态光谱及微纳材料和器件的制备、机理分析及基础应用研究。E-mail: dwhe@bjtu. edu. cn" ]
[ "王永生(1963-),男,吉林省吉林市人,博士,教授,博士生导师,1993 年于中国科学院长春物理研究所获得博士学位,主要从事发光、显示材料与器件(包括无机、有机复合发光的动力学、能量传递、 瞬态光谱及发光材料和器件)方面的研究。E-mail: yshwang@bjtu. edu. cn" ]
收稿日期:2023-04-20,
修回日期:2023-05-10,
纸质出版日期:2023-07-05
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何大伟,赵辉,王永生.二维材料及其异质结构中载流子动力学过程研究进展[J].发光学报,2023,44(07):1273-1286.
HE Dawei,ZHAO Hui,WANG Yongsheng.Research Progress on Photocarrier Dynamics in Two-dimensional Materials and Their Heterostructures[J].Chinese Journal of Luminescence,2023,44(07):1273-1286.
何大伟,赵辉,王永生.二维材料及其异质结构中载流子动力学过程研究进展[J].发光学报,2023,44(07):1273-1286. DOI: 10.37188/CJL.20230101.
HE Dawei,ZHAO Hui,WANG Yongsheng.Research Progress on Photocarrier Dynamics in Two-dimensional Materials and Their Heterostructures[J].Chinese Journal of Luminescence,2023,44(07):1273-1286. DOI: 10.37188/CJL.20230101.
二维材料及其异质结构由于其独特的结构和优异的光电性能,有望成为下一代光电子技术的核心材料。光生载流子的动力学性质对这些材料的光电性能具有重要的影响。本文综述了近年来对这些材料中光生载流子动力学过程的研究进展。在时域动力学方面,介绍了利用基于超快激光的瞬态吸收光谱技术所揭示的二维材料中的载流子热化、能量弛豫、激子形成、激子⁃激子湮灭、以及激子复合等物理过程。在空域动力学方面,讨论了利用具有高空间分辨率的瞬态吸收显微技术来研究光生载流子在二维材料平面内的输运过程。在此基础上,进一步讨论了二维材料异质结构中的电荷及能量在层间转移的过程。
Due to their unique structures and excellent optoelectronic properties, two-dimensional (2D) materials and their heterostructures are promising materials for the next generation optoelectronic technology. The dynamic properties of photocarriers have an important influence on the optoelectronic properties of these materials. This review discusses the research progress in recent years on the photocarrier dynamics in these materials. In the time domain, transient absorption measurements of carrier thermalization, energy relaxation, exciton formation, exciton-exciton annihilation, and exciton recombination in 2D materials are discussed. In the spatial domain, high-spatial-resolution transient absorption microscopy studies of photocarrier in-plane transport properties are introduced. Furthermore, interlayer charge and energy transfer in 2D heterostructures are discussed.
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