期刊
ADVANCED MATERIALS
卷 15, 期 21, 页码 1844-1849出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.200305395
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The synthesis of nanocrystalline PbS quantum dots using organometallic precursors is reported. The samples exhibit tunable, strong near-infrared photoluminescence. A remarkable spontaneous self-directed narrowing of the particle sized distribution is shown to occur after the particles are synthesized and dispersed in organic solvent. The Figure shows the tuning of band-edge exciton absorption features through the near-infrared spectral region according to particle size.
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