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періодичних видань НАН України
періодичних видань НАН України
Effect of iodine impurity on the absorption spectrum and phase transitions in CsPbCl₃ thin films
Репозиторій DSpace/Manakin
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Effect of iodine impurity on the absorption spectrum and phase transitions in CsPbCl₃ thin films
Тема:
Characterization and properties
Інший ID:
DOI:https://doi.org/10.15407/fm25.02.218
Посилання:
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.
Дата:
2018
Переглядів:
706
Завантажень:
423
Анотація:
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 increasing x at x = 0.3 indicates the formation of the exciton spectrum of a persistence type in the interval 0.3≤x < 1. The iodine impurity leads to an insignificant increase of the phase ransition temperatures in the orthorhombic (Tc₃) and cubic (Tc₁) phases of CsPbCl₃.
