Abstract
Luminescent temperature sensors operated at wide temperature interval show promising technological potential. Here, the holmium and ytterbium co-doping of cubic phase Sc2O3:x%Ho3+/8%Yb3+ (x = 1.0–3.0) nanocrystals are synthesized by a facile coprecipitation annealing method. The strongest green and red up-conversion emission was obtained from Sc2O3:2%Ho3+/8%Yb3+ with 980 nm excitation. The temperature sensitivity steadily increases to 0.1285 K−1 at ∼83 K during cooling. Accordingly, the ratio of green and red up-conversion emission increases from 0.966 to 3.469 when cooling from 483 K to 83 K. This is in accordance with the changing of cross-relaxation process at different temperatures. This work highlights the fascinating potential of lanthanide-loped Sc2O3 for highly sensitive wide temperature monitoring.
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.
