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Effect of Doping With (Methylene Blue and Methyl Red) On Optical Properties of Polymethyl Methaete (PMMA) | ||
| Journal of College of Education | ||
| Article 1, Volume 0, Issue 5, 2017, Pages 449-465 | ||
| Author | ||
| Bushra A. Hasan | ||
| Abstract | ||
| Pure polymethyl methacrylate (PMMA) films doped with mehylene blue (mb) una *.tr,yi ."J trrO with iifferent concentration were prepared successfully .The opiical band gap (EJ of pure PMMA was found (a'765eV) for direcr transirion ,-i;;t;;r 6;nd tlo d..r.ut. in irregular manner of ( mb) doped samples, while ( E* ) declared a systematic decreasing of (mr) doped samples . The extended o?iuit states (E") in the gap was found to change in contrast sequence to that of optical "n"tqV gap-' The 1a11tion of (E* )and (E" ) were explained in rerms of abiorbance variation with dopant concentrations ' | ||
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