Work

White photoluminescence emission from ZrO2 co-doped with Eu3+, Tb3+ and Tm3+

Year: 2016

Type: article

Abstract: The search for high efficiency, reliable, low power consumption and environmental friendly materials for white light-emitting diodes has become a proficient field.Singlephase doped materials have been made to solve some of these challenges.Particles with color-tunable emission can be obtained by a combination of some lanthanide ions in the host material.The luminescence properties and crystalline structure of ZrO 2 particles co-doped with rare earth ions (RE 3+ = Tb 3+ , Eu 3+ and Tm 3+ ) calcined at different temperatures were studied.We aimed to investigate the emission spectrum of the particles in the red, green, and blue regions under UV excitation.The x and y coordination chromaticity -(x = 0.34, y = 0.34) and (x = 0.31, y = 0.34) -presented values close to those of the white color (x = y = 0.33).In conclusion, the ZrO 2 : RE 3+ powers were successfully obtained by the complex polymerization method and are promising candidates for white light-emitting applications.

Source: Journal of Alloys and Compounds

DOI: 10.1016/j.jallcom.2016.03.037