Novel [60]fullerene-silver nanocomposite with large optical limiting effect

A novel [60]fullerene-Ag nanocomposite (DTC60-Ag) is prepared by the in sit u reduction of silver ions encapsulated in a new mono-functionalized methan o-[60]fullerene derivative (DTC60) with reverse micelle-like structure. The formation and size of the nanocomposite has been determined from the UV-Vi s plasmon absorption band, FT-IR spectra method and transmission electron m icroscopic (TEM) analysis. The average size distribution is about 5.2 mm. T he optical limiting properties of DTC60 and DTC60-Ag are measured via a nan osecond Nd:YAG pulse laser system at a wavelength of 532 mn. The experiment al results demonstrate that the optical limiting behavior of DTC60-Ag is be tter than that of both C-60 and DTC60. (C) 2001 Elsevier Science B.V. All r ights reserved.