Advanced Materials

Photodeposition of Pt on Colloidal CdS and CdSe/CdS Semiconductor Nanostructures


  • We thank B. F. Sadtler, J. S. Owen, M. Steigerwald, and L. E. Brus for fruitful discussions. This work was supported in part by AFOSR Grant No. FA9550-06-1-0488 and by the Director, Office of Science, Office of Basic Energy Sciences, of the US Department of Energy under Contract No. DE-AC02-05CH11231.


Pt nanoparticles are deposited photochemically on the surfaces of colloidal CdS nanorods and CdSe/CdS nanoheterostructures. While Pt deposits at varying positions along CdS nanorods, the deposition on CdSe/CdS occurs preferentially near the CdSe core.

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