Fabrication and characterization of Er,Ndcodoped Y2O3 Transparent Ceramic: A dual mode Photo-luminescence emitter

TL;DR

This study successfully fabricated Er, Nd co-doped Y2O3 transparent ceramics exhibiting dual-mode photoluminescence with high transparency, providing insights into upconversion mechanisms and potential applications as efficient emitters.

Contribution

The paper presents a novel fabrication process for transparent Er, Nd co-doped Y2O3 ceramics with dual-mode emission and detailed analysis of their luminescence mechanisms.

Findings

Achieved 78% transparency in the 500-2000 nm range.

Demonstrated dual-mode emission at 563 nm and 1064 nm.

Provided understanding of upconversion mechanisms in co-doped Y2O3.

Abstract

The transparent Er, Nd co-doped Yttria ceramics with transparency around 78 percentage (in 500 - 2000 nm range without Fresnels correction) were fabricated successfully. It involved nanoparticle synthesis by coprecipitation method and sintering of pellets under high vacuum condition. The crystalline phase, particle size and element composition were confirmed by X- ray diffraction, scanning electron microscope, energy dispersive X- ray fluorescence techniques, respectively. The upconversion luminescence mechanisms involving energy transfer and non-radiative relaxation were analyzed. It is expected that, the result evolved from this study will provide better understanding of upconversion mechanism involved in Er, Nd codoped host material. The emission at both 563 nm and 1064 nm on 822 nm excitation proves potential of the ceramic material for dual mode efficient emitter.