Controlling of optical energy gap of Co-ferrite quantum dots in poly (methyl methacrylate) matrix
El-Sayed, H.M.; W.R., AGAMI;
Abstract
Different crystallite sizes of Co-ferrite nanoparticles were prepared and dispersed in the matrix of poly (methyl methacrylate) (PMMA) polymer. The effect of crystallite size on the structure and optical energy gap of Co-nanoferrite/PMMA composite has been studied. The optical energy gap of Co-ferrite was greatly affected by the crystallite size. This result was discussed in terms of the formation of electron-hole exciton using particle in a box model. The effective mass and the Bohr radius of the formed exciton have been calculated from the spectroscopic measurements.
Other data
| Title | Controlling of optical energy gap of Co-ferrite quantum dots in poly (methyl methacrylate) matrix | Authors | El-Sayed, H.M. ; W.R., AGAMI | Keywords | Co-ferrite;Energy gap;Nanocomposites;PMMA polymer | Issue Date | 1-Jul-2015 | Publisher | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD | Journal | Superlattices and Microstructures | Volume | 83 | Start page | 651 | End page | 658 | ISSN | 07496036 | DOI | 10.1016/j.spmi.2015.04.013 | Scopus ID | 2-s2.0-84928775373 | Web of science ID | WOS:000357141500066 |
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