Shi Chen, Shen Xiuyu, Zhu Yanan, Li Xiaoqiang, Pang Zengyuan, Ge Mingqiao, Abolhasani Milad
College of Textile Science and Engineering, Jiangnan University, Wuxi 214122, P. R. China.
Department of Chemical & Biomolecular Engineering, North Carolina State University, 911 Partners Way, Engineering Building I (EB1), Raleigh, North Carolina 27606 United States.
ACS Omega. 2020 Dec 7;5(50):32420-32425. doi: 10.1021/acsomega.0c04516. eCollection 2020 Dec 22.
Developing luminescent materials with tunable emission colors provides exciting opportunities for application in the display, anti-counterfeiting, and optical sensors. Here, we report a convenient, versatile approach to synthesize color-tunable, up/down-conversion luminescence in an inorganic host material. The emission color can be tuned by varying the excitation wavelength, allowing dynamic color tuning in the visible spectrum. We demonstrate that an unprecedented luminescence tunability from these phosphors can be achieved by tailoring the intensity ratio of different emission peaks. These findings provide valuable insights into controlling multiple emission color processes while offering the possibility for dynamic anti-counterfeiting and visual sensing of ultraviolet light in the range from 250 to 320 nm. These results open the opportunity for developing next-generation stimuli-responsive luminescent materials and smart devices.
开发具有可调发射颜色的发光材料为其在显示、防伪和光学传感器领域的应用提供了令人兴奋的机遇。在此，我们报道了一种简便、通用的方法，用于在无机主体材料中合成颜色可调的上转换/下转换发光。通过改变激发波长可以调节发射颜色，从而在可见光谱中实现动态颜色调节。我们证明，通过调整不同发射峰的强度比，可以实现这些磷光体前所未有的发光可调性。这些发现为控制多种发射颜色过程提供了有价值的见解，同时为250至320纳米范围内的紫外线动态防伪和视觉传感提供了可能性。这些结果为开发下一代刺激响应发光材料和智能设备提供了机会。
