Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7907497 | Optical Materials | 2018 | 8 Pages |
Abstract
The samples of Polymethylmethacrylate (PMMA) have been implanted with 500Â keVÂ C+-ions at different ion fluences ranging from 9.3Â ÃÂ 1013 to 8.4Â ÃÂ 1014 ions/cm2. The structural modifications are examined by Fourier Transform Infrared and Raman spectral studies. For the investigation of optical, electrical and surface morphological properties of implanted samples UV-Visible spectrometer, four probe apparatus and optical microscope have been employed. The FTIR spectra confirmed the cleavage of chemicals bonds as a consequence of polymer chain scission, whereas, Raman studies revealed the transformation of PMMA structure into quasi-continuous amorphous carbon with increasing ion fluences. A continuous reduction has been observed in the optical band gap of PMMA from 3.16 to 1.42Â eV. Moreover, the refractive index, extinction coefficient and electrical conductivity of implanted PMMA are found to be an increasing function of the ion fluence. The micrographic images revealed the signatures of ion-induced defects like cracking, dehydrogenation, stress and swelling on the surface of PMMA. These implanted samples have a potential to be used in the field of optical communications and thin plastic flexible electronics.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Shafaq Arif, M. Shahid Rafique, Farhat Saleemi, Riffat Sagheer,