Abstract
A time- and energy-saving microwave (MW)-assisted method was adopted to synthesise yttrium oxide (Y2O3):erbium (Er) nanoparticles with upconversion (UC) luminescence properties within a few minutes, followed by a post-calcination treatment. It was demonstrated that calcination of nanoparticles at 800°C fully removed the organic groups from them and consequently produced crystalline Y2O3 nanoparticles, which was evident from X-ray diffraction (XRD) and Fourier transform infrared analysis. The energy-dispersive X-ray spectroscopy and XRD analysis confirmed that the Er element was successfully doped in Y2O3 nanoparticles. The growth process was monitored by time-dependent experiments, during which ultra-small particles would form first and then gradually dissolved and re-growed on surfaces of big particles. A two-photon process was demonstrated in the fabricated Y2O3:Er nanoparticles. As a cost-effective and highly-efficient method, the MW method can facilitate mass production and further application of UC nanomaterials into a variety of fields including solar cells, flat panel displays, sensors and UC lasers.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
