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Advanced Materials

Metallodielectric Photonic Crystals Assembled from Monodisperse Spherical Colloids of Bismuth and Lead


  • This work has been supported in part by a grant from ONR (N-00014-01-1-0976) and a Science and Engineering Fellowship from the David and Lucile Packard Foundation. Y. X. is an Alfred P. Sloan Research Fellow and a Camille Dreyfus Teacher Scholar. This work was performed in part at the University of Washington Nanotech User Facility (NTUF), a member of the National Nanotechnology Infrastructure Network (NNIN), which is supported by the National Science Foundation. Z.-Y. L. was supported by the National Key Basic Research Special Foundation of China under Grant No.2001CB610402. M. I. was sponsored by the Fulbright Program and Spanish Ministry of Education and Science. Supporting Information is available online from Wiley InterScience or from the author.


Monodisperse metallic and metallodielectric spherical colloids have been synthesized in large quantities and explored as building blocks for fabricating three-dimensional metallodielectric photonic crystals. Both measurements and calculations revealed large photonic bandgaps covering optical wavelengths from the visible up to the near-IR region for the metallic (Bi and Pb) and metallodielectric (with a silica coating) colloids (see Figure).

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