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Peculiarities of absorption spectra of solid solutions of CsAg₂l₃-CsCu₂l₃ complex compounds
The low-frequency electron absorption spectra in thin films of Cs(Ag₁₋ₓCuₓ)₂l₃ solid solutions have been investigated. At the fundamental band edge, two exciton bands A₀ and A₁ are observed, and the parameters thereof (spectral position, half-width and oscillator strength) have been found in the 0≤x...
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НТК «Інститут монокристалів» НАН України
2007
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| Series: | Functional Materials |
| Online Access: | http://dspace.nbuv.gov.ua/handle/123456789/136525 |
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irk-123456789-1365252018-06-17T03:10:10Z Peculiarities of absorption spectra of solid solutions of CsAg₂l₃-CsCu₂l₃ complex compounds Miloslavsky, V.K. Yanakova, O.N. Kovalenko, E.N. The low-frequency electron absorption spectra in thin films of Cs(Ag₁₋ₓCuₓ)₂l₃ solid solutions have been investigated. At the fundamental band edge, two exciton bands A₀ and A₁ are observed, and the parameters thereof (spectral position, half-width and oscillator strength) have been found in the 0≤xl range. From the concentration dependence of those parameters, the A₀ and A₁ excitons have been established to be localized in the double chains consisting of tetrahedrons MI₄ (M = Ag, Cu) and being a structural elements of CsM₂I₃ crystal lattice. Experimental results are discussed assuming the hybridization Ag, Cu d-orbitals and I p-orbitals in the upper valence band of the compounds and dependence of hybridization on molar concentration x. 2007 Article Peculiarities of absorption spectra of solid solutions of CsAg₂l₃-CsCu₂l₃ complex compounds / V.K. Miloslavsky, O.N. Yanakova, E.N. Kovalenko // Functional Materials. — 2007. — Т. 14, № 3. — С. 283-289. — Бібліогр.: 16 назв. — англ. 1027-5495 http://dspace.nbuv.gov.ua/handle/123456789/136525 en Functional Materials НТК «Інститут монокристалів» НАН України |
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English |
| description |
The low-frequency electron absorption spectra in thin films of Cs(Ag₁₋ₓCuₓ)₂l₃ solid solutions have been investigated. At the fundamental band edge, two exciton bands A₀ and A₁ are observed, and the parameters thereof (spectral position, half-width and oscillator strength) have been found in the 0≤xl range. From the concentration dependence of those parameters, the A₀ and A₁ excitons have been established to be localized in the double chains consisting of tetrahedrons MI₄ (M = Ag, Cu) and being a structural elements of CsM₂I₃ crystal lattice. Experimental results are discussed assuming the hybridization Ag, Cu d-orbitals and I p-orbitals in the upper valence band of the compounds and dependence of hybridization on molar concentration x. |
| format |
Article |
| author |
Miloslavsky, V.K. Yanakova, O.N. Kovalenko, E.N. |
| spellingShingle |
Miloslavsky, V.K. Yanakova, O.N. Kovalenko, E.N. Peculiarities of absorption spectra of solid solutions of CsAg₂l₃-CsCu₂l₃ complex compounds Functional Materials |
| author_facet |
Miloslavsky, V.K. Yanakova, O.N. Kovalenko, E.N. |
| author_sort |
Miloslavsky, V.K. |
| title |
Peculiarities of absorption spectra of solid solutions of CsAg₂l₃-CsCu₂l₃ complex compounds |
| title_short |
Peculiarities of absorption spectra of solid solutions of CsAg₂l₃-CsCu₂l₃ complex compounds |
| title_full |
Peculiarities of absorption spectra of solid solutions of CsAg₂l₃-CsCu₂l₃ complex compounds |
| title_fullStr |
Peculiarities of absorption spectra of solid solutions of CsAg₂l₃-CsCu₂l₃ complex compounds |
| title_full_unstemmed |
Peculiarities of absorption spectra of solid solutions of CsAg₂l₃-CsCu₂l₃ complex compounds |
| title_sort |
peculiarities of absorption spectra of solid solutions of csag₂l₃-cscu₂l₃ complex compounds |
| publisher |
НТК «Інститут монокристалів» НАН України |
| publishDate |
2007 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/136525 |
| citation_txt |
Peculiarities of absorption spectra of solid solutions of CsAg₂l₃-CsCu₂l₃ complex compounds / V.K. Miloslavsky, O.N. Yanakova, E.N. Kovalenko // Functional Materials. — 2007. — Т. 14, № 3. — С. 283-289. — Бібліогр.: 16 назв. — англ. |
| series |
Functional Materials |
| work_keys_str_mv |
AT miloslavskyvk peculiaritiesofabsorptionspectraofsolidsolutionsofcsag2l3cscu2l3complexcompounds AT yanakovaon peculiaritiesofabsorptionspectraofsolidsolutionsofcsag2l3cscu2l3complexcompounds AT kovalenkoen peculiaritiesofabsorptionspectraofsolidsolutionsofcsag2l3cscu2l3complexcompounds |
| first_indexed |
2023-10-18T21:13:20Z |
| last_indexed |
2023-10-18T21:13:20Z |
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1796152248091279360 |