IR laser induced spectra in novel crystals CdTe–CuInTe2
| Autor: | L. P. Marushko, A.O. Fedorchuk, M. Mzyk, E. M. Kadykalo, A. Wojciechowski, Michal Piasecki, O.V. Parasyuk, G.L. Myronchuk, Wojciech Kuznik |
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| Rok vydání: | 2013 |
| Předmět: |
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Molecular Phonon Ir laser Indium Molecular physics Spectral line Analytical Chemistry Pseudopotential Condensed Matter::Materials Science Co 2 laser Spectroscopy Fourier Transform Infrared Alloys Cadmium Compounds Instrumentation Spectroscopy business.industry Chemistry Anharmonicity Atomic and Molecular Physics and Optics Cadmium telluride photovoltaics Harmonic Phonons Quantum Theory Optoelectronics Tellurium Crystallization business Copper |
| Zdroj: | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 116:446-450 |
| ISSN: | 1386-1425 |
| Popis: | The novel crystalline alloys CdTe–CuInTe 2 were synthesized. The photoinduced spectral changes of the anharmonic phonon modes were explored by cw CO 2 laser at power about 2 kW in the vicinity of the 1650 cm −1 mode. The changes of the intensities for principal phonon modes were found. These modes were assigned both to harmonic as well as anharmonic modes. All the measurements are studied after the Ir illumination. The performed quantum chemical calculations with application of the norm-conserving pseudopotential method and Green functions allow to identify the origin of the content dependent anharmonic phonon modes. Some correlation between the intensities of the corresponding phonon modes at about 1600–1700 cm −1 and the corresponding IR induced changes were found. |
| Databáze: | OpenAIRE |
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