title: Preparation of nanoscale PbSe particles with different morphologies in diethylene glycol.
abstract: Nanoscale PbSe particles with different morphologies including octahedral, tetradecahedral and cubic shapes have been successfully prepared in diethylene glycol (DEG) at 240 degrees C in the presence of PVP-K30: poly(vinyl pyrrolidone), M(W) = 50 000. The formation of PbSe is believed to be an elemental recombination process of corresponding elements reduced from their precursors by the solvent. Experimental results showed that a prominent morphological variation was observed through varying the molar ratios of selenius acid to Pb(2+) when Pb(Ac)(2) was used as lead precursor, while the sizes of the final PbSe products tended to increase along with the increase of the molar ratios of selenius acid to Pb(2+) when Pb(NO(3))(2) was used as lead precursor.
authors.affiliation: State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Changchun 130022, People's Republic of China.
authors.forename: Zeping
authors.initials: Z
authors.lastname: Peng
authors.forename: Mingzhu
authors.initials: M
authors.lastname: Liu
authors.forename: Chao
authors.initials: C
authors.lastname: Yu
authors.forename: Zhanli
authors.initials: Z
authors.lastname: Chai
authors.forename: Hongjie
authors.initials: H
authors.lastname: Zhang
authors.forename: Cheng
authors.initials: C
authors.lastname: Wang
mesh_terms: D005026:Ethylene Glycols / Q000737:chemistry*; D007854:Lead / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry; D018036:Selenium Compounds / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D005026:Ethylene Glycols; D018036:Selenium Compounds; C088065:lead selenide; D007854:Lead; C013484:diethylene glycol