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Orthogonal Trichromatic Upconversion with High Color Purity in Core-Shell Nanoparticles for a Full-Color Display |
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| Authors: | Kaofeng Huang Haiyi Qiu Xintong Zhang Wang Luo Ying Chen Jiacheng Zhang Prof Yihang Chen Prof Guannan Wang Prof Kezhi Zheng |
| Institution: | 1. Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Material, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510006 China
These authors contributed equally to this work.;2. Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Material, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510006 China;3. College of Medical Engineering & the Key Laboratory for Medical Functional Nanomaterials, Jining Medical University, Jining, 272067 China |
| Abstract: | Materials with tunable emission colors has attracted increasing interest in both fundamental research and applications. As a key member of light-emitting materials family, lanthanide doped upconversion nanoparticles (UCNPs) have been intensively demonstrated to emit light in any color upon near-infrared excitation. However, realizing the trichromatic emission in UCNPs with a fixed composition remains a great challenge. Here, without excitation pulsed modulation and three different near-infrared pumping, we report an experimental design to fine-control emission in the full color gamut from core–shell-structured UCNPs by manipulating the energy migration through dual-channel pump scheme. We also demonstrate their potential application in full-color display. These findings may benefit the future development of convenient and versatile optical methos for multicolor tuning and open up the possibility of constructing full-color volumetric display systems with high spatiotemporal resolution. |
| Keywords: | Color Purity Core–Shell Nanoparticles Crystal Engineering Full-Color Displays Orthogonal Upconversion |