ItemArticle

Synthesis and third-order nonlinear optical properties of PEGylated platinum nanoparticles

Title
Synthesis and third-order nonlinear optical properties of PEGylated platinum nanoparticles
Creator
Felicia Aswathy, W.; Nayana, D.A.; Philip, Bessy Mary; George, Merin; Alex, Javeesh; Lekshmi, S.; Anila, E.I.; Sajan, D.
Description
PEGylated platinum nanoparticles, which are capped with polyethylene glycol-400, are synthesized through the chemical reduction technique. The sample was comprehensively characterised through UVvisible spectroscopy, X-ray diffraction (XRD) and transmission electron microscopy (TEM). XRD pattern for the sample revealed a face-centered cubic crystalline phase of platinum, with a lattice constant of 3.939 The average particle size, obtained from high-resolution electron microscopy analysis, is 3.73 nm. The third order NLO features were explored through the Z-scan technique, employing a continuous wave regime. The observed phenomena of nonlinear absorption (NLA) and nonlinear refraction (NLR) are attributed to reverse saturable absorption and thermal lens models. NLR index was measured to be in the range of 5.72 10?10 cm2/W, while NLA coefficient was found to be in the range of 1.86 10?5 cm/W, highlighting the potential of PEGylated Pt NPs for NLO applications. 2025 Elsevier B.V.
Source
Materials Science and Engineering: B;Volume;318;Issue;;Article No.;118331;
Date
01-01-2025
Publisher
Elsevier Ltd
Subject
Nonlinear absorption; Nonlinear refraction; Platinum nanoparticles; Reverse saturable absorption; Z-scan
Coverage
Felicia Aswathy W., Department of Physics and Electronics, Christ University, Karnataka, Bengaluru, 560029, India; Nayana D.A., Department of Physics, TKM College of Arts and Sciences, Kerala, Kollam, India; Philip B.M., Department of Chemistry, Bishop Moore College, Mavelikara, Kerala, Alappuzha, 690110, India; George M., Centre for Sustainable Energy and Environmental Technologies (CE2T), Department of Physics, Bishop Moore College, Mavelikara, Kerala, Alappuzha, 690110, India; Alex J., Centre for Sustainable Energy and Environmental Technologies (CE2T), Department of Physics, Bishop Moore College, Mavelikara, Kerala, Alappuzha, 690110, India; Lekshmi S., Department of Physics, Sanatana Dharama College, Alappuzha, 688003, India; Anila E.I., Department of Physics and Electronics, Christ University, Karnataka, Bengaluru, 560029, India; Sajan D., Centre for Sustainable Energy and Environmental Technologies (CE2T), Department of Physics, Bishop Moore College, Mavelikara, Kerala, Alappuzha, 690110, India
Rights
All Open Access; Hybrid Gold Open Access
Relation
ISSN: 9215107; CODEN: MSBTE
Format
online
Language
English
Type
Article

Citation

Felicia Aswathy, W.; Nayana, D.A.; Philip, Bessy Mary; George, Merin; Alex, Javeesh; Lekshmi, S.; Anila, E.I.; Sajan, D., “Synthesis and third-order nonlinear optical properties of PEGylated platinum nanoparticles,” CHRIST (Deemed To Be University) Institutional Repository, accessed June 18, 2026, https://archives.christuniversity.in/items/show/22415.

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