Preparation of PbS and PbSe nanocrystals by a new solvothermal route

Journal Article · Fri Apr 02 00:00:00 EST 2004 · Materials Research Bulletin

DOI:https://doi.org/10.1016/j.materresbull.2003.12.003· OSTI ID:20888045

Gautam, Ujjal K; Seshadri, Ram

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{sub 2}S/H{sub 2}Se 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.

• OSTI ID: 20888045
• Journal Information: Materials Research Bulletin, Vol. 39, Issue 4-5; Other Information: DOI: 10.1016/j.materresbull.2003.12.003; PII: S0025540803003672; Copyright (c) 2004 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CITRIC ACID
CRYSTAL STRUCTURE
ELECTRON MICROSCOPY
ETHERS
LEAD SELENIDES
LEAD SULFIDES
MALONIC ACID
NANOSTRUCTURES
NAPHTHALENE
SELENIUM
SEMICONDUCTOR MATERIALS
SULFUR
SURFACTANTS
TETRALIN
TOLUENE
TRITONS
X-RAY DIFFRACTION