Journal
JOURNAL OF APPLIED SPECTROSCOPY
Volume 75, Issue 4, Pages 576-582Publisher
SPRINGER
DOI: 10.1007/s10812-008-9074-x
Keywords
nanocrystal; cadmium sulfide; sol-gel technology; optical and luminescent properties; quantum size effect; dispersion; stabilizer
Categories
Ask authors/readers for more resources
Based on analysis of optical absorption data for CdS nanocrystals obtained by sol-gel technology in gelatin, we have studied the effect of technological factors (reagent concentrations, gelatin concentration) on the growth process and size distribution of the synthesized nanocrystals. Depending on the reagent concentration, we synthesized CdS nanocrystals with mean radii in the range (r) over bar = 1.9-2.4 nm. We have shown that for a low gelatin content (1%), nanocrystals of different sizes are formed (1.7 nm and 2.6 nm). With an increase in the gelatin concentration, the size dispersion decreases and nanocrystals of a single mean radius (2.3 nm) are formed. We have established a correlation between the size dispersion and the shape of the photoluminescence spectrum of the CdS nanocrystals.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available