Controlling of optical energy gap of Co-ferrite quantum dots in poly (methyl methacrylate) matrix

El-Sayed, H.M. ; Agami, W.R. 


Abstract


© 2015 Elsevier Ltd. All rights reserved. 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

Issue Date 2015
Journal Superlattices and Microstructures 
URI http://research.asu.edu.eg/123456789/685
DOI 651
http://www.scopus.com/inward/record.url?eid=2-s2.0-84928775373&partnerID=MN8TOARS
83
10.1016/j.spmi.2015.04.013


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