4 February 1997 Vibronic interactions in CsPbCl3xBr3(1-x) (x=0...1) and CsPbCl2J crystals
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Proceedings Volume 2967, Optical Inorganic Dielectric Materials and Devices; (1997) https://doi.org/10.1117/12.266555
Event: International Conference on Advanced Optical Materials and Devices, 1996, Riga, Latvia
Abstract
Low temperature (T equals 5...80 K) reflection spectra at fundamental absorption edge and luminescence spectra have been measured for CsPbCl3xBr3(1-x) (x equals 0...1) and CsPbCl2J crystals. Some exciton parameters were estimated. Namely, the exciton binding energy for the crystal row varies from 71 to 31 meV and the ground exciton radius does in range 10.4 - 15.7 angstrom. It was found that disordering effects were insignificant for the above mentioned solid solutions. The exciton nature change condition is not satisfied in case of halide replacing. Relaxation of the intrinsic electron excitation for the investigated crystals excited in range of fundamental absorption occurs through the following ways. It is the free and trapped exciton emission and also their scattering on LO-phonons for CsPbX3 (X equals Cl,Br) single crystals, the trapped exciton emission for the CsPbCl3xBr3(1- x) (x equals 0...1) solid solutions and the trapped and self-trapped exciton emission for CsPbCl2J crystals.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. S. Pidzyrailo, M. S. Pidzyrailo, S. V. Miagkota, S. V. Miagkota, Anatolii S. Voloshinovskii, Anatolii S. Voloshinovskii, Myroslava V. Kutsyk, Myroslava V. Kutsyk, } "Vibronic interactions in CsPbCl3xBr3(1-x) (x=0...1) and CsPbCl2J crystals", Proc. SPIE 2967, Optical Inorganic Dielectric Materials and Devices, (4 February 1997); doi: 10.1117/12.266555; https://doi.org/10.1117/12.266555
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