Ali, Moazzam and Chattopadhyay, Soma and Nag, Angshuman and Kumar, Akshay and Sapra, Sameer and Chakraborty, S and Sarma, DD (2007) White-light emission from a blend of CdSeS nanocrystals of different Se:S ratio. In: Nanotechnology, 18 (7). 075401:1-4.
Restricted to Registered users only
Download (560Kb) | Request a copy
CdSeS nanocrystals with different bandgap energies have been synthesized by the colloidal method. The solution blend of blue-, green- and red-emitting CdSeS nanocrystals, in appropriate proportions, showed strong white emission of different shades on excitation with a UV source. We observed that the CIE coordinate of the spectrum of a particular blend is independent of excitation wavelength. We also observed that the contribution of self-absorption in energy loss in the blend of CdSeS nanocrystals is not very significant. A white-light-emitting LED has been fabricated by coating a blend mixed with polymethylmethacrylate on a commercial UV-LED.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Institute of Physics.|
|Department/Centre:||Division of Chemical Sciences > Solid State & Structural Chemistry Unit|
|Date Deposited:||26 Mar 2007|
|Last Modified:||19 Sep 2010 04:36|
Actions (login required)