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Far-infrared spectroscopy of laser power modified MnO nanoparticles

B. BABIC1, B. HADZIC1, I. KURYLISZYN-KUDELSKA2, N. PAUNOVIC1, B. VASICa1, W. D. DOBROWOLSKI2, M. ROMCEVIC1, J. TRAJIC1,* , N. ROMCEVIC1

Affiliation

  1. Institute of Physics, University of Belgrade, Pregrevica 118,11080 Belgrade, Serbia
  2. Institute of Physics, Polish Academy of Science, al. Lotnikow 32/46, 02-668 Warszawa, Poland

Abstract

The influence of the locally induced laser heating on MnO nanoparticles were investigated by atomic force microscopy (AFM) and far-infrared spectroscopy (FIR) at room temperature, in the spectral region between 80 and 600 cm-1. The FIR spectra were analyzed by using Maxwell-Garnet formula, where MnO nanoparticles are modeled as a mixture of homogeneous spherical inclusions in air. Laser induced heating leads to the conversion of the part MnO nanoparticles into the MnO2, Mn3O4 and MnOOH, along with possible formation of elemental Mn on the sample surface..

Keywords

Phonons, Light absorption and reflection, Laser heating, Nanoparticle.

Citation

B. BABIC, B. HADZIC, I. KURYLISZYN-KUDELSKA, N. PAUNOVIC, B. VASICa, W. D. DOBROWOLSKI, M. ROMCEVIC, J. TRAJIC, N. ROMCEVIC, Far-infrared spectroscopy of laser power modified MnO nanoparticles, Optoelectronics and Advanced Materials - Rapid Communications, 13, 5-6, May-June 2019, pp.376-379 (2019).

Submitted at: Sept. 3, 2018

Accepted at: June 14, 2019