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Reconstruction of Silver Nanoplates by UV Irradiation: Tailored Optical Properties and Enhanced Stability


  • Y.Y. thanks the University of California, Riverside for start-up funds and the Chinese–American Faculty Association of Southern California for the Robert T. Poe Faculty Development Grant. Acknowledgement is also made to the Donors of the Petroleum Research Fund, administered by the American Chemical Society, for support of this research. We thank Dr. Bozhilov and Mr. McDaniel at the Central Facility for Advanced Microscopy and Microanalysis at UCR for assistance with TEM analysis.


The size and shape of it: The optical properties of Ag nanoplates can be precisely tuned in a wide range through a UV-light-induced reconstruction process in which the morphology of the nanoparticles is changed from thin triangular plates to thick round plates (see picture). This unconventional “backward tuning” strategy is a practical route to stable silver nanoplates that display a wide range of plasmon wavelengths.

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