Kalasad, MN and Rabinal, MK and Mulimani, BG and Avadhani, GS (2008) Temporal evolution of capped cadmium sulfide nanoparticles. In: Semiconductor Science and Technology, 23 . 045009: 1-5.
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Cadmium sulfide nanoparticles capped with thioglycolic acid as an organic ligand were synthesized by solution chemistry. Temporal evolution was studied by optical absorption, fluorescence, TEM, FTIR and x-ray diffraction measurements to understand the growth and stability of nanocrystals/ligand composites. The results suggest that besides being a good capping agent, thioglycolic acid also acts as an effective passivating ligand for electronically active surface states of CdS nanoparticles. Such binding quenches surface recombination and improves excitonic (band-to-band) recombination. This makes CdS nanoparticles an attractive material for certain applications wherein surfaces states are to be eliminated.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Institute of Physics.|
|Department/Centre:||Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)|
|Date Deposited:||15 Apr 2008|
|Last Modified:||19 Sep 2010 04:44|
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