Colloidal Synthesis and Characterization of Optically Active ZnO/ZnS Core/Shell Nanocrystals
Keyword(s):
AbstractZnO colloidal nanocrystals have been synthesized using two different approaches and characterized by HRTEM, EDS, and photoluminescence spectroscopy. ZnO nanocrystals synthesized from zinc alkoxy alkyl precursors in the MeIm/H2O coordinating solvent showed only visible surface-defect related emission in their PL spectra. No band-to-band UV emission was observed after ZnS coating of those ZnO nanocrystals. In contrast, a strong band-to-band UV emission dominated PL spectra of ZnO nanocrystals synthesized through wet-chemical acid-catalyzed esterification of zinc acetate.
2009 ◽
Vol 47
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pp. 4723-4735
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2012 ◽
Vol 30
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pp. 777-785
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2000 ◽
Vol 3
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pp. 209-230
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2009 ◽
Vol 146
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pp. 498-502
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