Light-emitting diodes (LEDs) can regulate the light environment for plant growth to increase productivity. Deep blue light, which plays a pivotal role in plant photosynthesis, has received limited attention in research due to the challenges associated with synthesizing a blue phosphor exhibiting high thermal stability, high quantum efficiency and spectral similarity to plant response spectra. This study presents the synthesis and characterization of a blue phosphor Ca₄MgAl₂Si₃O₁₄:xCe³⁺,yLi⁺, which is characterized by remarkable thermal stability and quantum efficiency reached through charge compensation. The introduction of Li⁺ ions eliminates cation vacancy defects, mitigates charge imbalance due to heterovalent substitution, and acts as a flux, thereby effectively suppressing energy transfer between Ce³⁺ ions and significantly improving several key properties of the phosphor. Notably, the emission intensity is significantly enhanced, the internal quantum efficiency was increased from 74.2 to 91.6 %, and the external quantum efficiency was improved from 54.9 to 67.7 %. Moreover, the thermal stability at 423 K was augmented from 71 to 82 %. Of particular importance is the exceptional alignment of the phosphor's spectrum with the absorption spectrum of chlorophyll-a (with a spectral resemblance of SR_{chlorophyll-a} = 94.39 %). These findings underscore the great potential of Ca₄MgAl₂Si₃O₁₄:xCe³⁺,yLi⁺ phosphors in applications related to plant growth lighting.

发光二极管（LED）可以调节植物生长的光环境以提高生产力。深蓝光在植物光合作用中发挥着关键作用，但由于合成具有高热稳定性、高量子效率和与植物响应光谱相似的蓝色荧光粉的挑战，在研究中受到的关注有限。本研究介绍了蓝色荧光粉Ca ₄ MgAl ₂ Si ₃ O ₁₄ :xCe ³⁺ ,yLi ⁺的合成和表征，该荧光粉具有卓越的热稳定性和通过电荷补偿实现的量子效率。^{Li +}离子的引入消除了阳离子空位缺陷，减轻了异价取代引起的电荷不平衡，并起到助熔剂的作用，从而有效抑制了Ce ³⁺离子之间的能量转移，显着改善了荧光粉的几个关键性能。值得注意的是，发射强度显着增强，内量子效率从74.2%提高到91.6%，外量子效率从54.9%提高到67.7%。此外，423 K 下的热稳定性从 71% 提高到 82%。_{特别重要的是荧光粉的光谱与叶绿素-a 的吸收光谱的特殊一致性（SR叶绿素-a}的光谱相似度 = 94.39 %）。_{这些发现强调了Ca 4} MgAl ₂ Si ₃ O ₁₄ :xCe ³⁺ ,yLi ⁺荧光粉在植物生长照明相关应用中的巨大潜力。