Here we report a white light emitting glass system, photoluminescence (PL) intensity of which, can be enhanced and tuned by thermal treatment. Ag and Au metal nanoparticles (NPs) are generated into a Dy³⁺ doped glass by in situ thermochemical reduction. Ag and Au NPs start to grow with heat treatment. Absorption spectra show the characteristic surface plasmon resonance bands for respective nanometals. When excited at 447 nm, the glasses exhibit visible white emission. 4 to 6 times enhancement in PL intensity has been achieved as the combined effect of the metal NPs and matrix crystallization.

中文翻译：

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Ag和Au纳米粒子的局部表面等离子体激元增强白光发射玻璃中的光致发光

在这里，我们报告了一种白色发光玻璃系统，其光致发光（PL）强度可以通过热处理进行增强和调整。通过原位热化学还原将Ag和Au金属纳米颗粒（NPs）制成掺Dy ^3+的玻璃。随着热处理，Ag和Au NPs开始生长。吸收光谱显示出各个纳米金属的特征性表面等离子体共振带。当在447 nm激发时，玻璃表现出可见的白色发射。由于金属NP和基质结晶的共同作用，PL强度提高了4至6倍。