Tailoring Structural Properties of Polyethylene Terephthalate (PET) by 200 keV Ar⁺ Implantation

• DOI: 10.4028/www.scientific.net/amr.665.221
• Publication Date: 2013-03-11T17:11:50Z
• Authors: Mahak Chawla; Rubi Rubi; Rajiv Kumar; Annu Sharma; Sanjeev Aggarwal; Praveen Kumar; D. Kanjilal
• Keywords: 01 natural sciences; 0105 earth and related environmental sciences

In the present work, our aim is to reveal the effect of Ar+implantation on the structural behaviour of Polyethylene terephthalate (PET) using Fourier Transform Infrared and UV-Visible Spectroscopic techniques. PET specimens were implanted with 200 keV Ar+ions in the fluence range of 1x1015to 1x1017ions cm-2. The structural changes have been observed due to change in the position and intensity of the bands in the FTIR spectra of both implanted and unimplanted specimens. A continuous decrease in optical energy gap (from 3.63 eV to 1.48 eV) and enhancement in Urbach energy (from 0.29 eV to 3.70 eV) with increasing ion dose have been observed. The structural changes have been correlated with the optical parameters observed in PET specimens as a result of implantation.