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摘要

二维材料具有原子级光滑表面、纳米级厚度和超高的比表面积, 是研究金属纳米颗粒与二维材料的界面相互作用, 实时、原位观察金属纳米颗粒的表面原子迁移、结构演化和聚合等热力学行为的重要载体. 设计和构筑金属纳米颗粒与二维材料异质结构界面, 在原子尺度分析和表征界面结构, 揭示材料结构和性能之间的相互关系, 对于理解其相互作用和优化器件性能具有重要价值. 本文总结了近年来金属纳米颗粒在二维材料表面成核、生长、结构演化及其表征的最新进展, 分析了金属纳米颗粒对二维材料晶体结构、电子态、能带结构的影响, 探讨了可能的界面应变、界面反应, 及其对电学和光学等性质的调控, 讨论了金属纳米颗粒对基于二维材料的场效应管器件和光电器件的性能提升策略. 为从原子、电子层次揭示微结构、界面原子构型等影响金属纳米颗粒-二维材料异质结性能的物理机制, 为金属-二维材料异质结构的研制及其在电子器件、光电器件、能源器件等领域的应用奠定了基础.

关键词:

Abstract

Two-dimensional (2D) material has atomic smooth surface, nano-scale thickness and ultra-high specific surface area, which is an important platform for studying the interface interaction between metal nanoparticles (NPs) and 2D materials, and also for observing the surface atomic migration, structural evolution and aggregation of metal NPs in real time and in situ. By rationally designing and constructing the interfaces of metal NPs and 2D materials, the characterization of the interface structure on an atomic scale is very important in revealing the structure-property relationship. It is expected that the investigation is helpful in understanding the mechanism of interaction between metal and 2D materials and optimizing the performance of the devices based on metal-2D material heterojunctions. In this review, the recent progress of interface modulation and physical properties of the heterostructure of metal NPs and 2D materials are summarized. The nucleation, growth, structural evolution and characterization of metal NPs on the surface of 2D materials are reviewed. The effects of metal NPs on the crystal structure, electronic state and energy band of 2D materials are analyzed. The possible interfacial strain and interfacial reaction are also included. Because of the modulation of electrical and optical properties of 2D materials, the performance of metal NPs-2D material based field effect transistor devices and optoelectronic devices are improved. This review is helpful in clarifying the physical mechanism of microstructure affecting the properties of metal NPs-2D material heterostructures on an atomic scale, and also in developing the metal-2D material heterostructures and their applications in the fields of electronic devices, photoelectric devices, energy devices, etc.

Keywords:

作者及机构信息

通信作者:孙颖慧,yhsun@ustb.edu.cn; 王荣明,rmwang@ustb.edu.cn

基金项目:国家自然科学基金(批准号: 11974041, 12034002, 51971025)和北京市自然科学基金(批准号: 2212034)资助的课题.

Authors and contacts

Corresponding author:Sun Ying-Hui,yhsun@ustb.edu.cn; Wang Rong-Ming,rmwang@ustb.edu.cn

Funds:Project supported by the National Natural Science Foundation of China (Grant Nos. 11974041, 12034002, 51971025) and the Beijing Natural Science Foundation, China (Grant No. 2212034).

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施引文献

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