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  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 2002),
  • paper CFJ1

Photoactivated Fluorescence and in situ Electroluminescence from Individual Agn Molecules

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Abstract

Recently we have demonstrated the promise of nanoscale silver oxide (AgOx, x = 1,0.5) films for high-density optical data storage.1 These materials are readily photoactivated at room temperature to produce dynamic, multicolored, fluorescent Agn (n = 2-6 atoms) nanoclusters. By controlling the nanocluster distributions, we are exacting control over the writing process to encode information as any of n colors within this material. Growing in as individual emissive species, single A.g nanoclusters clearly exhibit both intensity and wavelength dependent fluorescence intermittency under continuous illumination, illustrating the equilibrium between nanocluster creation and destruction. This equilibrium has been directly probed through watching the evolution of the fluorescence spectrum in time, underscoring the fact that different silver nanocluster sizes and geometries appear as a function of both illumination time and intensity.

© 2002 Optical Society of America

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