Effect of iodine impurity on the absorption spectrum and phase transitions in CsPbCl₃ thin films

• Published in: Functional Materials
• Date: 2018
• Main Authors: Kovalenko, E.N., Yunakova, O.N., Yunakov, N.N.
• Format: Article
• Language: English
• Published: НТК «Інститут монокристалів» НАН України 2018
• Subjects: Characterization and properties
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/157134
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Effect of iodine impurity on the absorption spectrum and phase transitions in CsPbCl₃ thin films / E.N. Kovalenko, O.N. Yunakova, N.N. Yunakov // Functional Materials. — 2018. — Т. 25, № 2. — С. 218-224. — Бібліогр.: 24 назв. — англ.

The absorption spectra of thin films of solid solutions CsPb(Cl₁₋xIx)₃ 0≤x≤1 were studied. It has been found that at low concentrations x≤0.2, excitonic spectra of a amalgamation type (according to the classification of Onodera-Tojazawa) are formed. The concentration shift of the exciton bands with...