The Effect of Grinding on Optical Band Gap and Urbach Energy of Polypyrrole/Graphene Composites
Merve OKUTAN
Abstract:The goal of this study is to better understand the effect of grinding on the Eg of polypyrrole (PPy)/commercial graphene nanoplatelets (xGnP) composites with varying amounts of xGnP. The Eg for direct transition as a function of the xGnP amount was calculated from the Tauc plot. While the average particle size of the composites decreased between 6% and 30%, there was a slight decrement in the Egs. These values changed between 4.02 to 3.87 eV with the increasing amount of xGnP before grinding, and they reached … Show more
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