Carrier transfer induced photoluminescence change in metal-semiconductor core-shell nanostructures

H. Y. Lin, Y. F. Chen, J. G. Wu, D. I. Wang, C. C. Chen

研究成果: 雜誌貢獻文章

99 引文 斯高帕斯(Scopus)

摘要

Metal-semiconductor core-shell nanostructures have been synthesized to explore the influence of metal nanostructures on the photoluminescence of semiconductors. Up to 40 times enhancement in the emission intensity was observed in the Au-CdS core-shell nanostructures. The mechanism where the excited electrons on Au surface by surface plasmon wave transfer to the conduction band of the CdS shell and recombine with holes in the valence band was proposed to interpret the enhancement. Our model can also be used to explain the quenched emission in FePt-CdS core-shell nanostructures and Au-CdSe nanodumbbells.

原文英語
文章編號161911
期刊Applied Physics Letters
88
發行號16
DOIs
出版狀態已發佈 - 2006 四月 17

    指紋

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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