期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 111, 期 47, 页码 17493-17499出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp075076x
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Cu nanoparticles of 2.8 +/- 0.5 nm diameter were synthesized in the gas phase using a sputtering-aggregation-type source. High-density films of nanoparticles were deposited onto NaCl substrates, and strong interparticle coupling was observed. In the near-field spectrum, the surface plasmon absorption was more intense than, and shifted 20 nm to longer wavelengths from, that observed in the far-field spectrum. These are the first near-field spectra of such small Cu nanoparticles, and the results agree well with theoretical predictions.
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