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Formation of High‐Quality CdS and Other II–VI Semiconductor Nanocrystals in Noncoordinating Solvents: Tunable Reactivity of Monomers
Author(s) -
Yu W. William,
Peng Xiaogang
Publication year - 2002
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20020703)41:13<2368::aid-anie2368>3.0.co;2-g
Subject(s) - photoluminescence , nanocrystal , reactivity (psychology) , monomer , solvent , materials science , semiconductor , absorbance , photochemistry , chemistry , nanotechnology , polymer , optoelectronics , organic chemistry , medicine , alternative medicine , pathology , chromatography , composite material
Controllable reactivity of Cd precursors in the growth of CdS nanocrystals was achieved by varying the concentration of stabilizing ligand with a noncoordinating solvent. Such tunable reactivity is critical for developing the synthesis of semiconductor nanocrystals to the level of that of CdSe nanocrystals. The high quality of the CdS nanocrystals is indicated by the sharpness of the UV/Vis and photoluminescence spectra (see diagram, A =absorbance, I PL =photoluminescence intensity).