Публікація: Exciton absorption spectra of RbPb2Cl5 and Rb6Pb5Cl16 thin films
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Дата
2019
Назва журналу
ISSN журналу
Назва тома
Видавництво
НТК “Інститут монокристалів” Національної академії наук України
Анотація
The absorption spectra of thin RbPb2Cl5 and Rb6Pb5Cl16 films were studied in the spectral range 2-6 eV and the temperature interval 90-500 K. A correlation was established between the absorption spectra and the crystal structure of the compounds. Excitons in both compounds are localized in a sublattice containing Pb2+ ions, and refer to excitons of the intermediate bond. An analysis of the temperature dependence of the half-width of exciton bands establishes a two-dimensional (2D) nature of the excitons in RbPb2Cl5 and three-dimensional (3D) in Rb6Pb5Cl16.
Опис
Ключові слова
thin films, exciton, absorption spectra, crystal structure
Бібліографічний опис
Kovalenko E. N. Exciton absorption spectra of RbPb2Cl5 and Rb6Pb5Cl16 thin films / O. N. Yunakova, N. N. Yunakov // Functional Materials. – 2019. – Vol. 26, No. 2 – P. 295-301