DOI:10.29111/ijlrst ISRA Impact Factor:3.35
Research Paper Open Access
International Journal of Latest Research in Science and Technology Vol.3 Issue 5, pp 136-139,Year 2014
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Received : 23 October 2014; Accepted : 27 October 2014 ; Published : 31 October 2014
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In this paper we present experimental results for technology prepared quantum dots (QDs) to purpose the research for the next application. QDs were made with this process by Colloidal method at low temperature. Experimental research and manufacture of QDs obtained very good results, QDs were made with small size and sphere equally (shows at TEM images), the particle size change from 1.6nm to 2.5nm related to change in color from pale yellow to heavy red. Average deviation in size uniformly distributed are ± 2% in the solution. Results were obtained for UV-Vis spectra, PL spectra (photoluminescence spectra) Stokes shift are approximate 0.61eV to 1.2eV correspond effective radius change 1.6nm to 2.5nm between the two spectra. This shift is attributed to two causes: the status of disability within the QDs and movement related to the optical dark state of the fine structure. Furthermore, we have surveyed the solution stability over time by measuring the absorption spectra in three months, and absorbance was unchanged much to compare with the original.
Copyright © 2014 H. T. Tung et al. This is an open access article distributed under the Creative Commons Attribution 4.0 International (CC BY 4.0) license which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
H. T. Tung , " Synthesis And Optical Properties Of Qds Cdse For Application In Solar Cells ", International Journal of Latest Research in Science and Technology . Vol. 3, Issue 5, pp 136-139 , 2014
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