Abstract Tm3+-Dy3+ co-doped and Tm3+-Dy3+-Eu3+ tri-doped glass-ceramics (dGCs) containing NaY(MoO4)2 crystal phase were prepared. The crystal phase of the GCs was determined to be NaY(MoO4)2 by XRD, and the optimal heat treatment condition of GCs was determined to be 670 °C/2.5 h by DSC, SEM, and transmittance curves. Under 362 nm light excitation, the chromaticity coordinates of the Tm3+-Dy3+ co-doped GCs were tuned from blue to white region by adjusting the Dy3+ concentration. The energy transfer (ET) mechanism from Tm3+ to Dy3+ was a dipole-dipole interaction, and the ET efficiency was as high as 56.3% when the concentration of Dy3+ was 1.1%. When the concentration of Dy3+ exceeds 1.1%, concentration quenching caused by interaction between nearest-neighbor ions can be observed. With the addition of Eu3+, the chromaticity coordinates shifted from cool white to warm white region. These GCs were expected to be used in white LEDs.

中文翻译：

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含有 NaY(MoO4)2 晶相的 Tm3+-Dy3+-Eu3+ 三掺杂透明微晶玻璃：制备、能量转移、暖白光发射

摘要 制备了含有NaY(MoO4)2晶相的Tm3+-Dy3+共掺杂和Tm3+-Dy3+-Eu3+三掺杂微晶玻璃(dGCs)。通过XRD确定GCs的晶相为NaY(MoO4)2，通过DSC、SEM和透射率曲线确定GCs的最佳热处理条件为670℃/2.5h。在 362 nm 光激发下，通过调节 Dy3+ 浓度，Tm3+-Dy3+ 共掺杂 GC 的色度坐标从蓝色区域调整到白色区域。从Tm3+到Dy3+的能量转移（ET）机制是偶极-偶极相互作用，当Dy3+浓度为1.1%时，ET效率高达56.3%。当 Dy3+ 的浓度超过 1.1% 时，可以观察到由最近邻离子之间的相互作用引起的浓度猝灭。随着Eu3+的加入，色度坐标从冷白区域转移到暖白区域。这些 GC 预计将用于白光 LED。