Functionalized carbon nanotubes with tethered pyrenes: Synthesis and photophysical properties

Article Abstract:

The functionalization of carbon nanotubes with pyrene-containing dendra is investigated to examine the difference between Single-walled (SWNTs) and multiple-walled carbon nanotubes (MWNTs), and to assess the effect of the tether length. The results revealed that a significant emission contributions is from pyrene excimers in all functionalized carbon nanotubes samples in solution, and both SWNTs and MWNTs serve as efficient quenchers for the pyrene photoexcited states.

Science & research, Excited state chemistry, Bromides, Chemical properties, Nanotubes, Bromides (Chemistry)

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Strong optical limiting of silver-containing nanocrystalline particles in stable suspensions

Article Abstract:

Research was conducted to examine the strong optical limiting of silver-containing nanocrystalline particles in stable suspensions. A versatile approach for the preparation of a series of polymer-protected metal and metal sulfide nanoparticles, which was based on the expansion of supercritical fluid solution into a liquid solution, was developed. Results reveal that optical limiting characteristics are unique to the silver-containing nanocrystalline particles.

Polymers, Optical properties, Crystalline polymers, Suspensions (Chemistry)

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Photophysical and electron-transfer properties of mono- and multiple-functionalized fullerene derivatives

Article Abstract:

A systematic investigation of the absorption and emission properties of a series of C60 derivatives with mono- and multiple-functionalized fullerene cages is presented. The fluorescence lifetimes of the C60 derivatives were all between 1 ns and 3 ns.

Carbon allotropes

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