Fabrication and Optical Properties of Erbium-Doped Germanium Nanowires


  • JLC gratefully acknowledges support for this research by the Robert A. Welch Foundation as well as the National Science Foundation. The expertise of Dr. Alan Nichols of the Electron Microscopy Facility of the Research Resources Center of the University of Illinois-Chicago is also greatly appreciated. Supporting Information is available online at Wiley Interscience or from the author.


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A new simple vapor-phase route to germanium nanowires (see Figure) has been developed that relies on a combination of germanium plus carbon in the original reactant source. A layer of erbium ions grown along the surface of these nanowires produces a core–shell structure that emits in the near-infrared range.