期刊
APPLIED PHYSICS LETTERS
卷 95, 期 26, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3277184
关键词
carrier lifetime; gold; nanostructured materials; organic compounds; photoluminescence; time resolved spectra
资金
- National Science Council [NSC 98-2627-B-033-002]
Recombination dynamics of photoluminescence (PL) in Au nanoclusters (NCs) with different capping molecules were studied with time-resolved PL. Based on the emission-energy of carrier lifetimes; we suggest that the fast and slow PL decay of Au NCs originates from recombination of the linear Au-S bond and the staple motif, respectively. The effect of carrier localization in Au NCs was found to depend on the capping molecules. The zero-dimensionality of carriers in Au NCs was demonstrated by the temperature dependence of the time-resolved PL.
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