Surface optical phonon (SOP) mode in ZnS/Poly (methylmethacrylate) nanocomposites
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2020
Authors
Ćurčić, MilicaHadžić, Branka
Gilić, Martina
Radojević, Vesna
Bjelajac, Anđelika
Radović, Ivana
Timotijević, Dejan
Romčević, Maja J.
Trajić, Jelena
Romčević, Nebojša Ž.
article (publishedVersion)
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Show full item recordAbstract
The polymer nanocomposite ZnS/Poly (methylmethacrylate) was prepared by the solution casting method and its structural and optical properties were investigated using XRD, SEM, TEM, HRTEM, and Raman spectroscopy. The basic material, ZnS, has the cubic structure and its crystallite size was estimated to be 2.3 nm, which implies that a strong confinement regime is in effect. Analysis of Raman spectra was performed using the fitting procedure based on effective medium theory. As a result, the surface optical phonon (SOP) mode was detected. It was found that the shape and position of the SOP mode depend on the type of the composite.
Keywords:
Nanostructured materials / Optical properties / Phonons / Light absorption and reflectionSource:
Physica E-Low-Dimensional Systems & Nanostructures, 2020, 115Publisher:
- Elsevier, Amsterdam
Funding / projects:
- info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45003/RS// (RS-45003)
- info:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/34011/RS// (RS-34011)
- info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45019/RS// (RS-45019)
DOI: 10.1016/j.physe.2019.113708
ISSN: 1386-9477