Xie Jing, Zhong Yue, Su Tao, Wang Wenming, Pan Yan, Wei Xiantao, Li Yong
School of Microelectronics & Data Science, Anhui University of Technology, Maanshan 243000, China.
Anhui Research Center of Generic Technology in New Display Industry, Hefei 230009, P. R. China.
Phys Chem Chem Phys. 2024 Oct 2;26(38):25048-25056. doi: 10.1039/d4cp03074e.
Vanadate phosphors include [VO] tetrahedra with symmetry. Due to the charge transfer (CT) between V-O, the phosphor with [VO] tetrahedra exhibits strong emission in the visible region and can effectively absorb ultraviolet (UV) light. Garnet structured vanadate phosphors have attracted much attention due to their easily controllable composition. In this paper, we successfully prepared phosphors with high quantum efficiency. The lattice structure and luminescent properties of the samples were studied in detail. Vanadate garnet phosphors have the same structure. The phosphors exhibit broadband emission peaks under 266 nm and 355 nm near-ultraviolet (UV) excitation, emitting bright greenish-white and yellowish-white light. The emission wavelength of the phosphor is red-shifted. The phosphors exhibit high internal quantum efficiency (IQE) for the NaSrMgVO and KCaMgVO samples. In this paper, the structure and luminescence characteristics of greenish-white-emitting and yellowish-white-emitting vanadate phosphors with high quantum efficiency are investigated.
钒酸盐荧光粉包含具有特定对称性的[VO]四面体。由于V - O之间的电荷转移（CT），含有[VO]四面体的荧光粉在可见光区域表现出强烈发射，并且能够有效吸收紫外（UV）光。石榴石结构的钒酸盐荧光粉因其易于控制的组成而备受关注。在本文中，我们成功制备了具有高量子效率的荧光粉。详细研究了样品的晶格结构和发光性能。钒酸石榴石荧光粉具有相同的结构。这些荧光粉在266 nm和355 nm近紫外（UV）激发下呈现宽带发射峰，发出亮绿白色和黄白色光。荧光粉的发射波长发生红移。对于NaSrMgVO和KCaMgVO样品，荧光粉表现出高的内量子效率（IQE）。本文研究了具有高量子效率的绿白色发光和黄白色发光钒酸盐荧光粉的结构和发光特性。
