Optical characterisation of the photolytic decomposition of ferrocene into nanoparticles |
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| Authors: | P Heszler K Elihn M Boman J-O Carlsson |
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| Institution: | Research Group on Laser Physics of the Hungarian Academy of Sciences, P.O.Box 406, 6701 Szeged, Hungary, HU
Uppsala University, The ?ngstr?m Laboratory, Box 538, 751 21 Uppsala, Sweden, SE
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| Abstract: | Optical emission from the photolytic dissociation of ferrocene Fe(C5H5)2, often abbreviated as FeCp2, in argon atmosphere was studied. The dissociation was performed by using an ArF excimer laser, operating at a wavelength of 193 nm. Two pressure regions were examined. At low (0.1 mbar) pressure, several emission lines of Fe could be identified, however no C, C2, or CH emission lines/bands were found. At a higher (20 mbar) pressure of the FeCp2/Ar gas mixture, a broadband emission identified as blackbody radiation was observed. This blackbody radiation originates from nanoparticles with a mean size of 30 nm, which consist of both metallic iron and amorphous carbon. The initial colour temperature of the particles was 2600 K. |
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