Bright white light emission (CIE values 0.32 and 0.33) has been achieved by a single excitation source (254 nm) from a monodispersed nanocomposite composed of Ce³⁺, Tb³⁺ and Sm³⁺ doped LaF₃ nanocrystals (NCs) and N-doped C-dots where Ce³⁺ acts as an excellent sensitizer. Controlled deposition of the C-dots onto the surface of the LaF₃ NCs impedes conventional aggregation induced quenching (AIQ) of the C-dots in solid state. The transparent colloidal ink was coated onto an UV chip to fabricate a white light emitting diode (WLED) with a luminous efficacy of 8.72 lm W⁻¹.

中文翻译：

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Ce ³⁺敏化的单分散Tb，Sm共掺杂LaF ₃ @C点纳米复合材料的可见透明白色发光油墨†

通过单一激发源（254 nm），由掺杂Ce ³⁺，Tb ³⁺和Sm ^3+的LaF ₃纳米晶体（NCs）和N-组成的单分散纳米复合物实现了亮白光发射（CIE值0.32和0.33）。掺杂的C点，其中Ce ³⁺充当出色的敏化剂。C点在LaF ₃ NC的表面上的受控沉积阻碍了固态C点的常规聚集诱导淬灭（AIQ）。将透明的胶体油墨涂覆到UV芯片上以制造具有8.72lm W ^-1的发光效率的白光发光二极管（WLED）。