Optical and magneto-optical properties of PbFeI2 nanoparticles

I. D. Stolyarchuk; A. I. Savchuk; V. V. Makoviy; O. A. Shporta; O. A. Savchuk; I. Stefaniuk; I. Rogalska

doi:10.1117/12.2048676

17 December 2013 Optical and magneto-optical properties of PbFeI₂ nanoparticles

I. D. Stolyarchuk, A. I. Savchuk, V. V. Makoviy, O. A. Shporta, O. A. Savchuk, I. Stefaniuk, I. Rogalska

Proceedings Volume 9066, Eleventh International Conference on Correlation Optics; 906617 (2013) https://doi.org/10.1117/12.2048676
Event: Eleventh International Conference on Correlation Optics, 2013, Chernivsti, Ukraine

Abstract

Nanocrystals of Pb_1-xFe_xI₂ with x up to 0.05 embedded in transparent polymer matrix have been studied by optical absorption, photoluminescence and electron paramagneric resonance. The composite nanostructures containing the semimagnetic semiconductor nanocrystals of Pb_1-xFe_xI₂ have been prepared by cooling to the room temperature of boiling saturated aqueous solution. The absorption spectra of nanoparticles exhibit blue shift due to quantum confinement effect. For colloidal solution of nanocrystals and nanostructures incorporated in polymer matrix based on polyvinylalcohol exciton structures of absorption spectra was observed. In photoluminescence spectra of nanoparticles two main peaks were revealed, which are attributed to the band-edge transmission and defects states. The substitutional incorporation of iron ions at lead sites is reflected in EPR studies. Isolated as well as interacting Fe³⁺ ions are observed in EPR spectra of Pb_1-xFe_xI₂ nanocrystals.

Citation Download Citation

I. D. Stolyarchuk, A. I. Savchuk, V. V. Makoviy, O. A. Shporta, O. A. Savchuk, I. Stefaniuk, and I. Rogalska "Optical and magneto-optical properties of PbFeI₂ nanoparticles", Proc. SPIE 9066, Eleventh International Conference on Correlation Optics, 906617 (17 December 2013); https://doi.org/10.1117/12.2048676

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