Synthesis and characterization of thin films of poly(3-methyl thiophene) by rf-plasma polymerization |
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Authors: | GBVS Lakshmi DK Avasthi M Zulfequar |
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Affiliation: | a Department of Physics, Jamia Millia Islamia, New Delhi, 110025, India b Department of Physics, Delhi University, Delhi, India c Inter University Accelerator Centre, New Delhi, India |
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Abstract: | To facilitate synthesis of poly(3-methyl thiophene) thin film by RF-plasma polymerization process, suitable modifications have been done in a RF-sputtering set up. The deposition rate is found to be 3.33 nm/min. The synthesized films are characterized by FTIR, XRD, Ellipsometry, UV-Visible absorption spectroscopy and SEM. From FTIR, the formation of poly(3-methyl thiophene) has been confirmed. It is found that the synthesized polymer is cross-linked. XRD shows the amorphous nature of the prepared polymer film. The optical band gap has been estimated to be 2.14 eV from UV-visible absorption spectrum. Thickness of the polymer films has been measured to be 2000 Å by ellipsometry. |
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Keywords: | RF-plasma polymerization Poly(3-methyl thiophene) FTIR XRD |
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