Issue 47, 2020

A laser metallurgy route for the batch preparation of mm-scale 3D silver/graphite heteronanoclusters in air

Abstract

We report a batch preparation of mm-scale 3D Ag hetero-nanoclusters which exhibit an excellent surface plasmon resonance ability via facile laser metallurgy. Under laser irradiation, the porous AgI-based coordination network crystals were instantly converted into 3D graphite-encapsulated Ag hetero-nanoclusters with uniform sizes and gaps in several seconds. The obtained hetero-nanoclusters exhibited superior 3D confocal laser energy utilization compared with the other 0D, 1D and 2D SERS substrates, solving the bottleneck caused by laser focusing deviation in the SERS active depth. The mass-produced SERS devices were ultra-sensitive for the detection of life and industrial organic pollutants in terms of low detection and enriched capacity.

Graphical abstract: A laser metallurgy route for the batch preparation of mm-scale 3D silver/graphite heteronanoclusters in air

Supplementary files

Article information

Article type
Paper
Submitted
22 sep 2020
Accepted
02 nov 2020
First published
04 nov 2020

Nanoscale, 2020,12, 24054-24061

A laser metallurgy route for the batch preparation of mm-scale 3D silver/graphite heteronanoclusters in air

M. Gao, H. Jiang, F. Han, H. Deng, J. Hu and A. Shen, Nanoscale, 2020, 12, 24054 DOI: 10.1039/D0NR06806C

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