Abstract

Yb³⁺/Er³⁺ co-doped Ba_0.5Ca_0.5ZrO₃ (*BCZ) ceramics at different sintering temperature through solid state reaction route are prepared. The ceramics are exposed to high power 980 nm NIR laser source where upconversion photoluminescence properties of the ceramic are investigated. The blue upconversion emission centered at 479 nm corresponds to the transition ¹G₄ → ³H₆, the emission band around 650 nm corresponds to the transition ¹G₄ → ³F₄ of Tm³⁺. Energy transfer from Yb³⁺ to Tm³⁺ is mainly nonradiative and the transfer efficiency was experimentally assessed. The sample advances with its electrical property variation incorporation with spectroscopic investigation. Simultaneously piezoelectric, dielectric & ferroelectric properties has been studied in the ceramics. Furthermore, color purity & CIE calculation of the luminescence spectra shows that the upconversion corresponding with transitions ¹G₄ → ³H₆ in BCZ doped with Yb³⁺ and Tm³⁺ is potentially useful for blue light output.

© 2017 Optical Society of America