Preparation of size-classified PbS nanoparticles in the gas phase

We report on the synthesis of size-classified PbS nanocrystals by differential mobility analysis of a polydisperse aerosol formed by nucleation and aggregation processes in a furnace reactor. The sublimation temperature employed is below the stoichiometric evaporation temperature, thus enabling dire...

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Bibliographic Details
Published in:Applied physics letters 1998-07, Vol.73 (4), p.547-549
Main Authors: Kruis, F. Einar, Nielsch, Kornelius, Fissan, Heinz, Rellinghaus, Bernd, Wassermann, Eberhard F.
Format: Article
Language:English
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Summary:We report on the synthesis of size-classified PbS nanocrystals by differential mobility analysis of a polydisperse aerosol formed by nucleation and aggregation processes in a furnace reactor. The sublimation temperature employed is below the stoichiometric evaporation temperature, thus enabling direct and simple synthesis by sublimation. The irregularly shaped and amorphous agglomerate particles are then sintered in a second furnace, resulting in the formation of monocrystalline and quasispherical particles with sizes adjustable between 3 and 20 nm and a standard deviation of 1.13.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.121928