Ali, Moazzam ; Chattopadhyay, Soma ; Nag, Angshuman ; Kumar, Akshay ; Sapra, Sameer ; Chakraborty, S. ; Sarma, D. D. (2007) White-light emission from a blend of CdSeS nanocrystals of different Se:S ratio Nanotechnology, 18 (7). 075401_1-075401_4. ISSN 0957-4484
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Official URL: http://iopscience.iop.org/0957-4484/18/7/075401
Related URL: http://dx.doi.org/10.1088/0957-4484/18/7/075401
Abstract
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: | Article |
|---|---|
| Source: | Copyright of this article belongs to Institute of Physics. |
| ID Code: | 46307 |
| Deposited On: | 04 Jul 2011 07:00 |
| Last Modified: | 04 Jul 2011 07:00 |
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