Isomeric effects in rod-shaped Au 20 clusters: a comparative study on near-infrared photothermal enhancement
Source abstract
Abstract
In this work, we report two rod-shaped Au20 clusters with distinct core configurations and 14 free electrons, offering an important atomically precise model to probe structure-property relationships. A key finding is that ligand-tuned shortening of Au-Au bonds and a slight structure distortion within the cluster core decisively enhance photothermal conversion efficiency and tune NIR-II emission. The most compact Au20 architecture achieves a photothermal conversion efficiency of 25% and extends emission into the NIR-II window at 1190 nm. These results establish bond-length engineering as a powerful and generalizable design principle for tuning the functional properties of atomically precise metal nanoclusters, opening new avenues for the development of high-performance photothermal and luminescent materials.
Source: europepmc · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nanocluster Synthesis and Applications · Gold and Silver Nanoparticles Synthesis and Applications · Advanced Nanomaterials in Catalysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
MOE Key Laboratory of Cluster Sciences, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, P. R. China
State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Vegetables Quality and Safety Control, Ministry of Agriculture and Rural Affairs of China, Beijing 100081, P. R. China
Tangshan Research Institute, Beijing Institute of Technology, Tangshan 063000, P. R. China
Funding
Natural Science Foundation of Hebei Province · National Natural Science Foundation of China · Natural Science Foundation of Beijing Municipality
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