Surface optical phonon – Plasmon interaction in nanodimensional CdTe thin films
| Autor: | Witold Dobrowolski, Jelena Mitrić, Uroš Ralević, I.S. Yahia, Borislav Vasić, Jelena Trajic, Maja Romcevic, N. Paunović, Miodrag Mitrić, Nebojša Romčević |
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| Rok vydání: | 2018 |
| Předmět: |
Permittivity
Materials science thin film Phonon plasmon-phonon interaction 02 engineering and technology Substrate (electronics) 01 natural sciences Condensed Matter::Materials Science symbols.namesake Condensed Matter::Superconductivity 0103 physical sciences Thin film Spectroscopy surface optical phonon Plasmon 010302 applied physics business.industry 021001 nanoscience & nanotechnology Condensed Matter Physics Atomic and Molecular Physics and Optics Cadmium telluride photovoltaics Electronic Optical and Magnetic Materials far–infrared spectroscopy Raman spectroscopy symbols Optoelectronics 0210 nano-technology business |
| Zdroj: | Physica E: Low-dimensional Systems and Nanostructures |
| ISSN: | 1386-9477 |
| DOI: | 10.1016/j.physe.2018.07.021 |
| Popis: | Structural and optical properties of CdTe thin films were investigated applying atomic force microscopy (AFM), XRD powder technique, Raman spectroscopy and far–infrared spectroscopy. CdTe thin films were prepared by using thermal evaporation technique. In the analysis of the far – infrared reflection spectra, numerical model for calculating the reflectivity coefficient for system which includes films and substrate has been applied. Effective permittivity of film mixture (CdTe and air) was modeled by Maxwell – Garnet approximation. We reveal the existence of surface optical phonon (SOP) mode and coupled plasmon-SOP modes (CPSOPM). |
| Databáze: | OpenAIRE |
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