Praseodymium (Pr) doped hexagonal LaF₃ nanocrystals have been synthesized by a facile hydrothermal route. The influence of the Pr concentration on the morphology, microstructure and photoluminescence dynamics of the nanocrystals have been explored. The Judd–Ofelt parameters Ω_λ have been calculated from the absorption spectra, indicating that the Ω₆ > Ω₂ > Ω₄ trend is evidence for good quality hexagonal LaF₃ nanocrystals. The branching ratios for both ¹D₂→ ³H₄ and ³P₀ → ³H₆ transitions are about 50%, indicating that the orange-yellow emission efficiency with color purity. The CIE color coordinates show that the Pr doped hexagonal LaF₃ nanocrystals may be a potential candidate for future optoelectronic.

f（Pr）掺杂的六角LaF ₃纳米晶体已通过简便的水热途径合成。研究了Pr浓度对纳米晶体的形貌，微观结构和光致发光动力学的影响。应用Judd-Ofelt理论参数Ω _λ已经从吸收光谱计算出的，表示该Ω ₆  >Ω ₂  >Ω ₄趋势是质量好六边形的LaF证据₃纳米晶体。¹ D ₂ → ³ H ₄和³ P ₀ → ³ H ₆的支化比跃迁约为50％，表明橙黄色的发射效率与色纯度有关。CIE色坐标表明，掺Pr的六角形LaF ₃纳米晶体可能是未来光电的潜在候选者。