Colloidal Synthesis and Characterization of Optically Active ZnO/ZnS Core/Shell Nanocrystals

2007 ◽  
Vol 1035 ◽  
Author(s):  
Krishnaprasad Sankar ◽  
Brian A. Akins ◽  
Tosifa A. Memon ◽  
Nathan J. Withers ◽  
Shin T. Bowers ◽  
...  

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.

Author(s):  
Brandon A. Correa-Piña ◽  
Omar M. Gomez-Vazquez ◽  
Sandra M. Londoño-Restrepo ◽  
Luis F. Zubieta-Otero ◽  
Beatriz M. Millan-Malo ◽  
...  

Rare Metals ◽  
2009 ◽  
Vol 28 (2) ◽  
pp. 122-126 ◽  
Author(s):  
Xianming Wu ◽  
Runxiu Li ◽  
Shang Chen ◽  
Zeqiang He

2009 ◽  
Vol 146 (3) ◽  
pp. 498-502 ◽  
Author(s):  
Masoud Salavati-Niasari ◽  
Fatemeh Davar ◽  
Zeinab Fereshteh

Sign in / Sign up

Export Citation Format

Share Document