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A Synthetic Method for Transition‐Metal Chalcogenide Nanocrystals
Author(s) -
Wang DingSheng,
Zheng Wen,
Hao ChenHui,
Peng Qing,
Li YaDong
Publication year - 2009
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200801815
Subject(s) - chalcogenide , nanocrystal , dispersity , materials science , semiconductor , nanotechnology , colloid , cyclohexane , chemical engineering , solvent , nanoparticle , selenium , metal , chemistry , organic chemistry , polymer chemistry , metallurgy , optoelectronics , engineering
A facile wet route was applied to prepare a series of chalcogenide semiconductor nanocrystals (see figure) in controllable shapes and sizes, while a general bottom‐up approach was adopted to transform these cyclohexane‐soluble monodisperse nanocrystals into water‐soluble colloidal spheres.In this paper, we prepared a series of chalcogenide semiconductor nanocrystals in controllable shape and size via a facile wet route using metal nitrates and sulfur or selenium powder as precursors and octadecylamine (ODA) as solvent. The as‐obtained chalcogenides included CdS, MnS, Ag 2 S, PbS, Cu 1.8 S, Bi 2 S 3 , ZnS, Zn x Cd 1− x S, as well as Ag 2 Se, Cu 2− x Se, CdSe, MnSe. Furthermore, these cyclohexane‐soluble monodisperse nanocrystals were assembled to water‐soluble colloidal spheres and the adjustment of assembly orderliness has been achieved by controlling the experimental parameters. The general synthesis and assembly of chalcogenide semiconductors provide ideal building blocks for various potential applications.