The exciton absorption spectrum of KPbI3 thin films

The exciton absorption spectrum of KPbI3 thin films

The absorption spectrum of KPbI 3 thin films is studied in the spectral range 2–6 eV within the temperature interval 90–470 K. Localization of excitons in the sublattice of the compound containing lead ions is established. Excitons are shown to be of two-dimensional nature.

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Veröffentlicht in:Optics and spectroscopy 2014, Vol.116 (1), p.68-71
Hauptverfasser: Yunakova, O. N., Miloslavsky, V. K., Kovalenko, E. N.
Format: Artikel
Sprache:eng
Schlagworte:
Condensed-Matter Spectroscopy
Lasers
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
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Zusammenfassung:The absorption spectrum of KPbI 3 thin films is studied in the spectral range 2–6 eV within the temperature interval 90–470 K. Localization of excitons in the sublattice of the compound containing lead ions is established. Excitons are shown to be of two-dimensional nature.
ISSN:0030-400X
1562-6911
DOI:10.1134/S0030400X1401024X