A series of phosphors Ca₁₄Zn₆Ga₁₀O₃₅:Mn⁴⁺, Ln³⁺ (Ln = Nd, Yb, Er) have been prepared by conventional high temperature solid-state reaction. Mn⁴⁺ single doped Ca₁₄Zn₆Ga₁₀O₃₅ shows deep red emitting, and it can obtain NIR emission when co-doped with Ln³⁺ in Ca₁₄Zn₆Ga₁₀O₃₅:Mn⁴⁺ via an efficient energy transfer from Mn⁴⁺ to Ln³⁺. This process mainly is attributed to the dipole-dipole interaction mechanism. Visible-NIR to NIR down-shifting is realized via the energy transfer from Mn⁴⁺ to Ln³⁺ ions. Reversely, the green emission of Er³⁺ can be observed upon 980 nm light excitation, and the red emitting of Mn⁴⁺ appears in Mn⁴⁺ and Er³⁺ co-doped Ca₁₄Zn₆Ga₁₀O₃₅ phosphors through the up-converted energy transfer from Er³⁺ to Mn⁴⁺. Two-photon processes are required to populate the ²H_11/2, ⁴S_3/2 and ⁴F_9/2 excited states of Er³⁺. The dual-mode luminescence mechanism, including energy transfer from Mn⁴⁺ to Ln³⁺ and up-conversion energy transfer from Er³⁺ to Mn⁴⁺, has been discussed in detail.

通过常规高温固态反应制备了一系列磷光体Ca ₁₄ Zn ₆ Ga ₁₀ O ₃₅：Mn ⁴⁺，Ln ³⁺（Ln = Nd，Yb，Er）。Mn ⁴⁺单掺杂Ca ₁₄ Zn ₆ Ga ₁₀ O ₃₅呈现深红色发射，并且通过有效的能量转移在Ca ₁₄ Zn ₆ Ga ₁₀ O ₃₅：Mn ^4+中与Ln ³⁺共掺杂时可以获得NIR发射。从Mn ⁴⁺到Ln ³⁺ 。该过程主要归因于偶极-偶极相互作用机理。可见光到NIR的下移是通过从Mn ⁴⁺到Ln ³⁺离子的能量转移实现的。相反地，Er构成的一绿色发射³⁺可以在980nm的光激发，红色发光Mn中观察到⁴⁺出现在锰⁴⁺和Er ³⁺共掺杂的Ca ₁₄锌₆镓_10层ö ₃₅通过向上的磷光体转换后的能量从Er ³⁺转移到Mn ⁴⁺。需要两个光子过程才能填充² H _11/2，Er ^3+的4 S _3/2和⁴ F _9/2激发态。详细讨论了双模发光机理，包括从Mn ⁴⁺到Ln ^3+的能量转移以及从Er ³⁺到Mn ⁴⁺的上转换能量。