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Fabrication and optical properties of pyrene-Eu hybrid materials
Yan-Xia Zhao1, Bo Xu, Xun-Lei Ding
1Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun, Haidian, Beijing 100190, PR China.
Abstract:
Lanthanide-containing organic-inorganic hybrid materials have drawn much attention in the research of materials with multifunctional and modulated optical properties. Here, large area pyrene-Eu hybrid nanostructures constructed of a large amount of nanowires are successfully fabricated through physical vapor codeposition method at low temperature (77 K). Further optical property characterizations indicate that the pyrene-Eu hybrid nanostructures exhibit enhanced green light emission under blue light excitation compared with other fabricated samples (pyrene nanostructures, Eu nanoparticles, and pyrene/Cu hybrid nanostructures). The results indicate the occurrence of an energy transfer process from the sensitizing pyrene nanostructures to Eu. Pyrene-Eu hybrid nanostructures with unique photoluminescence properties may have promising applications in phosphors, light-emitting device, and UV-vis photo sensor. The results also prove that the physical vapor codeposition method is an effective way for design of organic-inorganic hybrid materials with controllable and tunable optical properties.
