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Time resolved luminescence spectroscopy of CsPbBr3 single crystal

DOI: 10.1016/j.jlumin.2020.117346 DOI Help

Authors: M. Dendebera (Ivan Franko National University of Lviv) , Y. Chornodolskyy (Ivan Franko National University of Lviv) , R. Gamernyk (Ivan Franko National University of Lviv) , O. Antonyak (Ivan Franko National University of Lviv) , I. Pashuk (Ivan Franko National University of Lviv) , S. Myagkota (Lviv State Agrarian University) , I. Gnilitskyi (“NoviNano Lab” LLC; Lviv Polytechnic National University) , V. Pankratov (University of Latvia) , V. Vistovskyy (Ivan Franko National University of Lviv) , V. Mykhaylyk (Diamond Light Source) , M. Grinberg (University of Gdansk) , A. Voloshinovskii (Ivan Franko National University of Lviv)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Journal Of Luminescence , VOL 225

State: Published (Approved)
Published: September 2020

Abstract: The work reports the results of spectroscopic and luminescence-kinetic studies of CsPbBr3 single crystal over 14–300 K temperature range. It is shown that at low temperatures the luminescence spectrum contains three narrow bands at 534, 537, and 541.5 nm exhibiting a fast decay and a broad emission band at ca. 560 nm with long decay. The evolution of the luminescence bands and their temporal characteristics with temperature are discussed from the viewpoint of possible emission mechanisms. The origin of the luminescence bands is discussed in relation with the observed features of their temporal characteristics. The mechanism of luminescence quenching for different emission band is suggested.

Journal Keywords: CsPbBr3 single crystal; Excitonic luminescence; Rashba valleys; Time resolved luminescence

Subject Areas: Materials, Physics

Technical Areas: