2022-Sustainable Industrial Processing Summit
SIPS2022 Volume 18 Intl. Symp on Advanced Materials, Polymers, Composite, Nanomaterials, Nanotechnologies and Manufacturing
| Editors: | F. Kongoli, F. Marquis, N. Chikhradze, T. Prikhna, M. De Campos, S. Lewis, S. Miller, S. Thomas. |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2022 |
| Pages: | 290 pages |
| ISBN: | 978-1-989820-68-1(CD) |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Studying doping effect on linear and nonlinear properties of PVA/PbS nanocomposites
Ali Fatemi1; Milad Rasouli2; Kazem Jamshidi-Ghaleh1;1DEPARTMENT OF PHYSICS, FACULTY OF SCIENCES, AZARBAIJAN SHAHID MADANI UNIVERSITY, Tabriz, Iran; 2KHARAZMI UNIVERSITY, Tehran, Iran;
Type of Paper: Regular
Id Paper: 269
Topic: 69
Abstract:
Tuning the nanoparticle features by doping iron impurities is an interesting field. It provides a tool for structural and optical characteristics controlling for the material. PVA/PbS nanoparticles synthesized by chemical bath route in the presence of PVA polymer as jell bed stabilizer them Sn and Ag ions injected in material as impurities. Prepared samples investigated by XRD and TEM for criticality and morphology proofing, which were in agreement with each other. Optical spectroscopy of nanocomposites studied by Uv-Vis (300-900 nm) range absorption spectra and by using tach relation bandgap of samples was measured that was obviously a semiconductor (around 2.3-2.8 eV). Studying followed by photoluminescence spectroscopy (PL), we saw in this case for both impurities PL quenched by doping. Nonlinear measurements were done by Z-scan technique with a He-Ne CW laser by 632.8 nm wavelength beam focused by 150mm focal length lens was used for exciting samples which led to thermal nonlinearity mechanism. For nonlinear refractive index and nonlinear absorption, self-focusing and saturable absorber attribute were observed respectively. n2 and β were from the order of 10-9 and 10-3, respectively.