Maxwell-Boltzmann statistics to elucidate the luminescent emission bands in Co(OH)2 and Co3O4 nanocrystals

Here we synthesized the Co3O4 and Co(OH)(2) nanocrystals using Chemical Bath Deposition technique. We discuss the Fluorescence dependence with the trap density and surface recombination velocity to the light of the Maxwell-Boltzmann theoretical results obtained through the characterization by techniques: X-ray Diffraction (XRD), Absorbance, Raman spectroscopy, and Fluorescence. The XRD show hexagonal beta-Co(OH)(2) and Co3O4 cubic phase, grain sizes of similar to 18.60 nm and similar to 19.06 nm, respectively. The Co(OH)(2) absorbance shows band at similar to 569 nm and at similar to 286 nm and similar to 377 nm. The Co(OH)(2) shows electronic transitions at similar to 1.51 eV and similar to 2.07 eV assigned to O2- -> Co2+ and O2- -> Co3+ charge transfer processes. The Co3O4 and Co3O4 have modes. Raman of Co(OH)(2) shows active Raman modes. The Fluorescence spectrum of Co3O4 shows peaks at range similar to 470-573 nm. Co(OH)(2) exhibited twelve emission bands in the UV-vis region at range similar to 460-660 nm.