Lanthanide-doped Sc2O3 for highly sensitive temperature sensor
Source abstract
Abstract
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.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Optical properties and cooling technologies in crystalline materials · Perovskite Materials and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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