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Preparation of PbS and PbSe nanocrystals by a new solvothermal route

Gautam, Ujjal K and Seshadri, Ram (2004) Preparation of PbS and PbSe nanocrystals by a new solvothermal route. In: Materials Research Bulletin, 39 (4-5). pp. 669-676.

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Abstract

A new solvothermal route for the preparation of nanocrystals of PbS and PbSe, involving the reaction of lead stearate with sulfur or selenium and tetralin (tetrahydronaphthalene) in toluene solvent is described. Tetralin in the presence of S/Se gives $H_2S/H_2Se$ and gets aromatized to naphthalene. The nanocrystals have been characterized by powder X-ray diffraction and electron microscopy. Use of surfactant Triton X-100 (polyoxyethylene(10)isooctylphenyl ether) resulted in both nanorods and nanoparticles of PbSe. Capping by citric acid and malonic acid reduce the particle sizes to less than 10 nm.

Item Type: Journal Article
Additional Information: The copyright belongs to Elsevier.
Keywords: A.Nanostructures;A.Semiconductors;C.Electron microscopy;C.X-ray diffraction;D.Crystal structure
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 23 May 2006
Last Modified: 19 Sep 2010 04:26
URI: http://eprints.iisc.ernet.in/id/eprint/6795

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