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Precise Synthesis and Optoelectronic Applications of Single-Cluster Devices
Shurui Ji, Qianru Li, Moshuqi Zhu, Qiaofeng Yao, Wenping Hu
Prog Chem ›› 2026, Vol. 38 ›› Issue (3) : 369-383.
PDF(8327 KB)
PDF(8327 KB)
Precise Synthesis and Optoelectronic Applications of Single-Cluster Devices
Metal nanoclusters, with their atomically precise structures, unique quantum effects, and tunable optoelectronic properties, have emerged as a crucial bridge connecting discrete metal atoms and bulk metals. As a pivotal material for next-generation high-performance optoelectronic devices, in-depth understanding of their structure-property relationship is necessary for the on-demand design of functional devices. However, conventional characterization techniques predominantly focus on the macroscopic effects induced by collective behaviors of cluster ensembles, making it difficult to precisely resolve the structure-performance relationship of metal nanoclusters at the atomic level, significantly hindering the advancement of metal nanoclusters in atomically precise fabrication and functional integration. With continuous progress of single-molecule electronics, single-cluster devices have emerged as an effective platform for directly revealing the intrinsic electronic structure and quantum transport behavior of metal nanomaterials at the single-cluster scale, largely bypassing the ambiguity in structure-performance relationship caused by averaging effects and structure heterogeneity of cluster ensembles. This review focuses on the single-cluster devices research, systematically summarizing recent progress in precise synthesis of functionalized clusters, fabrication of single-cluster devices, electrical transport behavior of single-cluster devices, and their potential applications in diverse fields. We then conclude our discussion with key challenges and perspectives for the future development of single-cluster devices, aiming at offering an useful reference for design and fabrication of nanodevices at the atomic level.
1 Introduction
2 Precise synthesis of functionalized metal nanoclusters
2.1 Metal core doping
2.2 Ligand engineering
3 Fabrication of single cluster devices
3.1 Static single-cluster devices-electromigration technique
3.2 Dynamic single-cluster devices
4 Electrical transport properties of single-cluster devices
4.1 Regulation of electrical transport properties of single-cluster junctions at the cluster-electrode interface
4.2 Regulation of electrical transport properties of single-cluster junctions by the intrinsic structure of clusters
5 Applications of single-cluster devices
5.1 Single-cluster switch devices
5.2 Single-cluster transistor devices
5.3 Catalytic characterization platform based on single cluster devices
5.4 Single-cluster light-emitting diode devices
6 Conclusion and outlook
metal nanoclusters / single-cluster devices / optoelectronic applications
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