In-situ host-transition-induced upconversion luminescence modulation of ZrW2O7(OH)2·2H2O:Yb3+/Er3+ nanocrystals
Source abstract
Abstract
Abstract Luminescence properties of upconverting nanomaterials are significantly influenced by host structures. Even though previous studies have demonstrated various modulation approaches of host structures on upconversion luminescence, in-situ host transition has been hardly realized. In this paper, we demonstrate in-situ host-transition-induced upconversion luminescence modulation based on ZrW2O7(OH)2·2H2O:Yb3+/Er3+ nanocrystals. Specifically, ZrW2O7(OH)2·2H2O:Yb3+/Er3+ could be decomposed into ZrO2:Yb3+/Er3+ and WO3:Yb3+/Er3+ nanocrystals due to the increased host temperature by the 980-nm-wavelength-laser-triggered photothermal heating. After the host transition, the red-to-green emission ratio of the prepared nanoparticles has been significantly increased, leading to an apparent color change in the upconversion light emission. The work is expected to open up unprecedented avenues for fluorescence anti-counterfeiting, optical encoding, and sensing applications.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Perovskite Materials and Applications · Nuclear materials and radiation effects
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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