Exciton absorption spectrum of Cs₄PbCl₆ thin films

• Published in: Functional Materials
• Date: 2015
• Main Authors: Yunakova, O.N., Miloslavsky, V.K., Kovalenko, E.N., Kovalenko, V.V.
• Format: Article
• Language: English
• Published: НТК «Інститут монокристалів» НАН України 2015
• Subjects: Characterization and properties
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/119356
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Exciton absorption spectrum of Cs₄PbCl₆ thin films / O.N. Yunakova, V.K. Miloslavsky, E.N. Kovalenko, V.V. Kovalenko // Functional Materials. — 2015. — Т. 22, № 2. — С. 175-180. — Бібліогр.: 25 назв. — англ.

Absorption spectrum of Cs₄PbCl₆ thin films was studied in the spectral range of 2-6 eV within the temperature interval 90-500 K. Localization of low-frequency excitonic states in sublattice of the compound containing Pb²⁺ ions was established. Excitons have intermediate bond and two-dimensional (2D)...