Phonon properties of β-FeSi2 and photoluminescence
| Autor: | Yoshihito Maeda, Yusuke Hiraiwa, Takahito Nakajima, Bui Matsukura, T. Ikeda |
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| Rok vydání: | 2011 |
| Předmět: |
Materials science
Photoluminescence business.industry Phonon Astrophysics::Cosmology and Extragalactic Astrophysics General Medicine Molecular physics Condensed Matter::Materials Science Condensed Matter::Superconductivity Optoelectronics Condensed Matter::Strongly Correlated Electrons Light emission Photoluminescence excitation business Absorption (electromagnetic radiation) Astrophysics::Galaxy Astrophysics |
| Zdroj: | Physics Procedia. 11:167-170 |
| ISSN: | 1875-3892 |
| DOI: | 10.1016/j.phpro.2011.01.007 |
| Popis: | We have investigated phonon properties of some β - FeSi 2 crystals with characteristic light emission properties by using measurements of far-infrared absorption and photoluminescence in order to discuss a correlation between them. It has been found that there is a systematic correlation between phonon states and light emission efficiency and that the phonons above the energy of more than ∼44 meV may be effectively coupled to the optical indirect transition for the IR light emission from β - FeSi 2 crystals. |
| Databáze: | OpenAIRE |
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