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H.Gg. Wagner, A. Emelianov, A. Eremin, H. Jander

Formation of Nanoparticles by Photolysis from Metal and Carbon Bearing Molecules

The formation of particles following the photolysis of C₃O₂, Fe(CO)₅ and Mo(CO)₆, diluted with Ar or He was registered at room temperature. Particle growth was followed by taking light extinction profiles at 633nm and at 220nm for various mixture compositions and pressures. The particles obtained at different conditions were analyzed using transition electron microscope (TEM) technique. It was found that in the pure undiluted gases at the partial pressures shown in the pictures no light absorption and no particle formation could be observed. Light absorption started for partial pressures of the diluent gas >10mbar. A comparison of particle size measured here at room temperature with data obtained at elevated temperature shows that the data obtained here fit well to the elevated temperature data.

Zeitschrift für Physikalische Chemie, Oldenbourg Wissenschaftsverlag

Print ISSN: 0942-9352
Volume: 217, 11/2003
Pages: 1361

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