ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Characterization of mechanochemically synthesized lead selenide

Marcela Achimovičová, Nina Daneu, Aleksander Rečnik, Juraj Ďurišin, Baláž Peter, Martin Fabián, Jaroslav Kováč, and Alexander Šatka

Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 043 53 Košice, Slovakia

E-mail: achimovic@saske.sk

Received: 14 October 2008  Revised: 9 February 2009  Accepted: 12 February 2009

Abstract: Mechanochemical synthesis of lead selenide PbSe nanocrystals was performed by high-energy milling of lead and selenium powders in a planetary ball mill. The structure properties of synthesized lead selenide were characterized by XRD analysis that confirmed crystalline nature of PbSe nanocrystals. Calculated average size of PbSe crystallites was 37 nm. The methods of particle size distribution analysis, specific surface area measurement, SEM and TEM were used for the characterization of surface and morphology of PbSe nanocrystals. SEM analysis revealed agglomerates of PbSe particles. However, HRTEM analysis confirmed perfect stoichiometric PbSe cubes with NaCl structure as well. UV-VIS-NIR spectrophotometry was used to confirm the blue shift of the small particles occurring in the powder product obtained by the mechanochemical synthesis.

Keywords: lead selenide - mechanochemical synthesis - nanoparticle - semiconductor

Full paper is available at www.springerlink.com.

DOI: 10.2478/s11696-009-0050-6

Chemical Papers 63 (5) 562–567 (2009)