Abstract A novel Eu3+ doped SiO2-B2O3-Al2O3-CaO-Na2O based borosilicate glass was designed to embed YAG: Ce for PiGs. It exhibits intense Eu3+ red emission with the average decay times of 6.8 μs and has the thermal conductivity of about 0.9 W/(mK) (five times that of silicone resin). The doped Eu3+ is over 10 mol% without any concentration quenching. The PiGs show variable decay time of Ce3+, which results from the tunable interface defects explained by the pseudo-solid solubility mechanism. The color of the WLEDs changes from cool white (6004 K) to warm white (3799 K) with more yellow emission added. The obtained maximal luminous efficiency and color rendering index are about 68 lm/W and 78, respectively. The anti-thermal quenching power of the PiGs is three times that of PiS based on the luminescent reduction. The PiG system can be used potentially for resin-free high power WLEDs.

中文翻译：

---

一种用于 WLED 的新型硼硅玻璃基 PiG，具有可调界面缺陷和高抗热淬灭能力

摘要 设计了一种新型 Eu3+ 掺杂的 SiO2-B2O3-Al2O3-CaO-Na2O 基硼硅酸盐玻璃，用于嵌入 YAG:Ce 用于 PiG。它表现出强烈的 Eu3+ 红色发射，平均衰减时间为 6.8 μs，热导率约为 0.9 W/(mK)（硅树脂的五倍）。掺杂的 Eu3+ 超过 10 mol%，没有任何浓度猝灭。PiG 显示 Ce3+ 的可变衰减时间，这是由拟固溶度机制解释的可调界面缺陷造成的。WLED 的颜色从冷白 (6004 K) 变为暖白 (3799 K)，并增加了更多的黄色发射。获得的最大发光效率和显色指数分别约为 68 lm/W 和 78。基于发光减少，PiGs 的抗热猝灭能力是 PiS 的三倍。