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18 December 2019 Effective photo- and cathodoluminescence from α-MoO3:Eu3+ films obtained through the pyrosol method
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Abstract

MoO3 and MoO3  :  Eu3  +   films were synthesized by the pyrosol method. X-ray diffraction diffractograms, acquired as a function of the deposition temperature, indicated the orthorhombic crystalline structure for all studied MoO3 films. Photoluminescence (PL) and cathodoluminescence (CL) characteristics of these films were measured as a function of deposition parameters, such as the substrate temperature and the doping content (Eu3  +  ions). As the deposition temperature was increased, an increase in the intensity of the PL and CL emissions was observed. Also, a quenching of the PL and CL, as a function of the doping content, was observed. Quantum efficiency measurements showed an average value as high as 54% and a pure red color was perceived. The elemental composition of the films as determined by x-ray photoelectron spectroscopy is reported as well. Additionally, the surface morphology features of the films, as a function of the deposition temperature (by means of scanning electron microscopy and transmission electron microscopy measurements) are exhibited. Moreover, Raman spectroscopy and decay time measurements were performed on some MoO3  :  Eu3  +   samples.

© 2019 Society of Photo-Optical Instrumentation Engineers (SPIE) 1947-7988/2019/$28.00 © 2019 SPIE
Adriana Báez-Rodríguez, Luis Zamora-Peredo, Octavio Alvarez-Fregoso, Rafael Martinez-Martinez, Lazaro Huerta-Arcos, Ciro Falcony Guajardo, Marco A. Alvarez-Perez, and Manuel García-Hipólito "Effective photo- and cathodoluminescence from α-MoO3:Eu3+ films obtained through the pyrosol method," Journal of Photonics for Energy 9(4), 046001 (18 December 2019). https://doi.org/10.1117/1.JPE.9.046001
Received: 7 August 2019; Accepted: 4 December 2019; Published: 18 December 2019
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