Citation: Song ZHOU, Hongrui LI, Zekang YAN, Zhijun WANG, Panlai LI. Preparation and luminescence properties of color-tunable CaScBO₄∶Bi³⁺, Eu³⁺ phosphors[J]. Chinese Journal of Inorganic Chemistry, ;2026, 42(6): 1261-1275. doi: 10.11862/CJIC.20250329 shu

Preparation and luminescence properties of color-tunable CaScBO₄∶Bi³⁺, Eu³⁺ phosphors

College of Physics Science and Technology, Hebei University, Baoding, Hebei 071002, China

Corresponding author: Panlai LI, lipanlai@hbu.edu.cn
Received Date: 28 October 2025
Revised Date: 19 April 2026

Figures(12)

A series of color-tunable Ca_0.993-yScBO₄∶0.007Bi³⁺, yEu³⁺ (y=0-0.100) phosphors was synthesized using a high-temperature solid-state reaction method. Through the construction of an efficient non-radiative energy transfer channel from Bi³⁺ to Eu³⁺ in the CaScBO₄ lattice, the emission color was continuously tuned from the blue region [CIE chromaticity coordinate: (0.153, 0.050)] to the orange-red region [CIE chromaticity coordinate: (0.530, 0.270)] under 330 nm excitation. The energy transfer efficiency reached a maximum of 71.2%, and the mechanism was determined to be the electric dipole-dipole interaction with a critical distance of 1.36 nm. As the representative orange-red phosphor, Ca_0.893ScBO₄∶0.007Bi³⁺, 0.100Eu³⁺ demonstrated excellent thermal stability, retaining 77.7% of the initial integrated intensity at 423 K, with a thermal quenching activation energy of 0.417 eV. Compared to the single-doped Ca_0.993ScBO₄∶0.007Bi³⁺ blue phosphor, this co-doped system achieves a broad color tuning range from blue to orange-red while maintaining relatively high quantum efficiency and excellent thermal stability.
- borate,
- energy transfer,
- luminescence properties
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Preparation and luminescence properties of color-tunable CaScBO4∶Bi3+, Eu3+ phosphors

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Preparation and luminescence properties of color-tunable CaScBO₄∶Bi³⁺, Eu³⁺ phosphors