17th International Conference on Ion Beam Modification of Materials

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Fluorescence enhancement in ZnO nanophosphor dispersed PMMA matrix by swift heavy ion irradiation

Sarla Sharma*, Shweta Agarwal, and Y K Vijay

poster presentation: Monday 2010-08-23 05:00 PM - 07:00 PM in section Nanostructure synthesis and modification
Last modified: 2010-06-02

Abstract


This paper reports on SHI induced modifications in the structural and optical properties of ZnO/PMMA nanocomposites. The ZnO nanoparticles of different sizes were synthesized by chemical route using 2- mercaptoethanol as capping agent. These ZnO nanoparticles were dispersed in the PMMA matrix to form ZnO/PMMA nanocomposites which were confirmed by X-ray diffractometer studies. These ZnO/PMMA nanocomposites were then irradiated by swift heavy ion irradiation (Ni+8 ion beam, 100 MeV) at a fluence of 1 x 1011 ions/cm2.  Absorption and Photoluminescence spectroscopy revealed a red shift in the band gap and enhanced green luminescence about 526 nm after irradiation with respect to the pristine ZnO/PMMA nanocomposites respectively.

 


Author(s) affiliation:
Sarla Sharma*, University of Rajasthan Jaipur, India
Shweta Agarwal, University of Rajasthan Jaipur, India
Y K Vijay, University of Rajasthan Jaipur, India

*presenting author
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