Full-color tuning in multi-layer core-shell nanoparticles from single-wavelength excitation
South China University of Technology · Guangdong University of Technology
Abstract
Lanthanide-based luminescent materials have shown great capabilities in addressing scientific problems encountered in diverse fields. However, achieving full-color switchable output under single-wavelength irradiation has remained a daunting challenge. Here we report a conceptual model to realize this aim by the temporal control of full upconversion evolution in a multi-layer core-shell nanostructure upon a single commercial 980-nm laser, instead of two or more excitation wavelengths as reported previously. We show that it is able to realize the red-to-green color change (from Er3+) under non-steady state excitation by constructing the cooperative modulation effect in the Er-Tm-Yb triple system, and single out…
Citation impact
- FWCI
- 18.09
- Percentile
- 100%
- References
- 48
Authors
6Topics & keywords
- Excitation
- Excitation wavelength
- Shell (structure)
- Core (optical fiber)
- Wavelength
- Materials science
- Layer (electronics)
- Nanoparticle
Funding
- CPChina Postdoctoral Science FoundationAward: 2022M721178
- SCSouth China University of TechnologyAward: 2023ZYGXZR053
- SKState Key Laboratory of Luminescent Materials and DevicesAward: Skllmd-2023-11, Skllmd-2024-3
- NNNational Natural Science Foundation of China-Yunnan Joint FundAwards: 52472151, 52402184, 52272151, 52472159