Quantum confinement in coated nanoparticles

H. S. Zhou, I. Honma, K. H. Kim, H. Komiyama, H. Sasabe, J. W. Haus

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We synthesize CdS/PbS-coated nanoparticles and investigate the spectra of their optical absorption and photoluminescence (PL). The experimental results can be explained by the quantum-confinement model in coated semiconductor nanoparticles. We also prepare gold-coated nanoparticles with a nonmetallic core Au2S by a two-step colloidal method, and observe the extraordinary optical absorption spectra of the coated samples. The results are consistent with a theoretical approach that includes electromagnetic resonance effects and the quantum confinement of the carriers in the thin gold shell layer.

Original languageEnglish
Pages (from-to)133-136
Number of pages4
JournalSurface Review and Letters
Issue number1
Publication statusPublished - 1996 Feb


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