| Conţinutul numărului revistei |
| Articolul precedent |
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 SM ISO690:2012KULYUK, Leonid, MIROVITSKII, Vadim, ARUSHANOV, Ernest, TEZLEVAN, Victor, LEON, Maximo, MISHINA, E., SHERSTYUK, N., DUMOUCHEL, Tyler, FORTIN, Emery, RASING, T.. Structural investigation of CuIn5Se8 single crystals by optical second harmonic generation, ellipsometry, and photoluminescence. In: Applied Physics Letters, 2006, vol. 89, p. 0. ISSN 0003-6951. DOI: https://doi.org/10.1063/1.2362578 |
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  Applied Physics Letters |
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| Volumul 89 / 2006 / ISSN 0003-6951 | |
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| DOI:https://doi.org/10.1063/1.2362578 | |
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Cu In5 Se8 bulk single crystals were characterized using ellipsometry, photoluminescence (PL), and optical second harmonic generation (SHG). The refractive n (E) and absorption k (E) indices as functions of photon energy E are determined. The structure of the PL spectrum suggests the presence of the Cu-rich nonstoichiometric phases at the natural surfaces of the Cu In5 Se8 sample. The best fit of the experimental SHG data is achieved by assuming that Cu In5 Se8 belongs to the 4- 2m symmetry group. This result is in contradiction with x-ray analysis (6- 2m group), which testifies to the difference in surface and bulk structure. |
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| Cuvinte-cheie Copper compounds, Ellipsometry, photoluminescence, Photons, refractive index, Second harmonic generation |
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