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Wet Synthesis and Characterization of MSe (M = Cd, Hg) Nanocrystallites at Room Temperature

Published online by Cambridge University Press:  31 January 2011

Qing Yang ,
Kaibin Tang ,
Chunrui Wang ,
Chunjuan Zhang  and
Yitai Qian
Qing Yang
Affiliation:
Department of Chemistry and Structure Research Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
Kaibin Tang*
Affiliation:
Department of Chemistry and Structure Research Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
Chunrui Wang
Affiliation:
Department of Chemistry and Structure Research Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
Chunjuan Zhang
Affiliation:
Department of Chemistry and Structure Research Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
Yitai Qian*
Affiliation:
Department of Chemistry and Structure Research Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
*
a)Address all correspondence to this author. e-mail: [email protected]
a)Address all correspondence to this author. e-mail: [email protected]
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Semiconductor selenides of MSe (M = Cd, Hg) nanocrystalline powders were synthesized through the reactions between metal chlorides and sodium selenosulfate in the ammoniacal aqueous solution at room temperature for 6–10 h. The samples were characterized by x-ray powder diffraction, transmission electron microscopy, electron diffraction, x-ray photoelectron spectroscopy, and elemental analysis. The average diameters of CdSe and HgSe nanocrystallites are 4 and 8 nm, respectively. The storage and an interesting phase transition under hydrothermal conditions have been presented. The absorption spectrum of the as-prepared samples exhibits obvious blue shift due to the size confinement.

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Articles
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Journal of Materials Research , Volume 17 , Issue 5 , May 2002 , pp. 1147 - 1152
Copyright
Copyright © Materials Research Society 2002

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