Optical Properties of in-situ Chemically Synthesized PANI-TiO2 Nanocomposites
| Authors | Ajay Kumar Sharma1,2, Rishi Vyas2, Praveen Kumar Jain3, Umesh Chand4, Vipin Kumar Jain1 |
| Affiliations |
1Institute of Engineering and Technology, JK Lakshmipat University, Jaipur 302026, India 2Department of Physics, Swami Keshvanand Institute of Technology, Management & Gramothan, Jaipur 302017, India 3Department of Electronics and Communication Engineering, Swami Keshvanand Institute of Technology, Management & Gramothan, Jaipur 302017, India 4Department of Electrical and Computer Engineering, National University of Singapore, Singapore
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| Е-mail | ajaymnit19@gmail.com |
| Issue | Volume 11, Year 2019, Number 2 |
| Dates | Received 07 December 2018; revised manuscript received 03 April 2019; published online 15 April 2019 |
| Citation | Ajay Kumar Sharma, Rishi Vyas, et al., J. Nano- Electron. Phys. 11 No 2, 02012 (2019) |
| DOI | https://doi.org/10.21272/jnep.11(2).02012 |
| PACS Number(s) | 32.30.Rj, 33.20.Lg, 61.46. – W, 77.22. – d |
| Keywords | X-ray spectra, UV-Vis spectra, Structure of nanoscale materials, Dielectric properties of solids and liquids. . |
| Annotation |
The present manuscript details on the synthesis of (PANI)1 – x(TiO2)x nanocomposite (x 0, 0.02, 0.04, 0.06, 0.08, 0.10) using an in-situ chemical oxidation polymerization of aniline using ammonium peroxide sulfate (APS) as an oxidant in presence of colloidal anatase TiO2 nanoparticles at 0-5 °C in air. The X-ray diffraction of these specimens revealed amorphous nature of polyaniline which did not change with the addition of TiO2 nanoparticles during polymerization process. The selected area electron diffraction (SAED) pattern obtained from TEM also indicated the amorphous nature of polyaniline. The TiO2 nanoparticles exhibit diffraction from multiple lattice planes originating from polycrystalline nature of nanoparticles. TheSAED pattern corresponding to the nanocomposite displays lattice planes showing inter planar spacing of 3.56 Å resulting from (101) lattice planes of TiO2 nanoparticles. To study the vibration mode of PANI and PANI-TiO2 nanocomposites, Raman spectra was observed. Absorption spectra of the nanocomposite samples have been taken using UV-VIS-NIR spectrophotometer (Varian Cary 5000). The band gap energy (Eg) of the nanocomposites was determined using Talc’s relationship. As the content of TiO2 was increased in the polymer matrix, the shift of the optical band gap was observed. |
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List of References |
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