Abstract
This study examined the enhanced upconversion luminescence emission of bimodal Gd2O3:Er3+ particles by codoping with a trace amount of Li+ ions. Gd2O3:Er 3+/Li3+ composite particles with enhanced upconversion luminescence emission were synthesized by using a simple urea homogeneous precipitation method. The effect of the particle size and Er3+/ Li+ concentration ratio on the structural, morphological and optical properties of Gd2O3:Er3+/Li+ particles were studied systematically by X-ray powder diffraction, field emission scanning electron microscopy and room temperature photoluminescence. Strong upconversion eye-visible green light emission was observed from the Gd2O3:Er3+/Li+ particles under continuous near-infrared pump excitation from a commercially available diode laser. Monodisperse bimodal Gd2O3:Er3+/Li + particles show a good potential for biomedical and solid state lighting applications.
Original language | English |
---|---|
Pages (from-to) | 113-117 |
Number of pages | 5 |
Journal | Journal of Alloys and Compounds |
Volume | 572 |
DOIs | |
Publication status | Published - Sep 25 2013 |
Externally published | Yes |
Keywords
- GdO:Er
- Phosphor particles
- Upconversion luminescence
ASJC Scopus subject areas
- Mechanical Engineering
- Mechanics of Materials
- Materials Chemistry
- Metals and Alloys