Effect of iodine impurity on the absorption spectrum and phase transitions in CsPbCl3 thin films
Завантаження...
Дата
2018
Автори
Kovalenko, E. N.
Yunakova, O. N.
Yunakov, N. N.
Назва журналу
ISSN журналу
Назва тому
Видавець
НТК “Інститут монокристалів” Національної академії наук України
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 are formed. The concentration shift of the exciton bands with increasing x at x=0.3 indicates the formation of the exciton spectrum of persistence type in the interval 0.3<x<1. The iodine impurity leads to an insignificant increase of the phase transition temperatures in the orthorhombic and cubic phases of CsPbCl3.
Опис
Ключові слова
thin films, solid solutions, excitons
Цитування
Kovalenko E. N. 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. – Vol. 25, № 2 – P. 218-224