In this work, the silver or gold nanoparticle single-existing and co-existing tellurite glasses doped with Eu3+ were prepared, and the influence of gold or silver nanoparticles on the photoluminescence of tellurite glasses doped with Eu3+ were investigated. The photoluminescence of tellurite glasses doped with Eu3+ was enhanced by the surface plasmon absorption of gold or silver nanoparticles, and the maximum luminescence enhancement factors caused by the silver and gold nanoparticles are 4.8 and 3.5 factors, respectively. The differentiation of luminescence enhancement mechanisms caused by the gold or silver nanoparticles was demonstrated. The enhanced luminescence mechanism of the Au nanoparticle single-existing tellurite glasses doped with Eu3+ was from the increasing of radiative decays rate caused by the Au nanoparticles. The excitation field enhancement caused by the Ag nanoparticles was responsible for the luminescence enhancement of the Ag single-existing tellurite glasses doped with Eu3+. About 4.2-factor luminescence enhancement was observed in the Ag and Au nanoparticle co-existing tellurite glasses doped with Eu3+, which is attributed to the increasing of radiative decays rate and excitation field enhancement caused by the Au and Ag nanoparticles.

中文翻译：

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银和金纳米粒子增强Eu3+掺杂亚碲酸盐玻璃的光致发光性能和机理

本工作制备了掺Eu3+的银或金纳米颗粒单存和共存的亚碲酸盐玻璃，并研究了金或银纳米颗粒对掺Eu3+亚碲酸盐玻璃光致发光的影响。掺有 Eu3+ 的碲酸盐玻璃的光致发光被金或银纳米颗粒的表面等离子体吸收增强，银和金纳米颗粒引起的最大发光增强因子分别为 4.8 和 3.5 因子。证明了由金或银纳米粒子引起的发光增强机制的差异。掺杂Eu3+的Au纳米颗粒单存碲酸盐玻璃的增强发光机制是由于Au纳米颗粒引起的辐射衰减率增加。由 Ag 纳米粒子引起的激发场增强是掺杂 Eu3+ 的 Ag 单一存在的碲酸盐玻璃的发光增强的原因。在掺有 Eu3+ 的 Ag 和 Au 纳米颗粒共存的碲酸盐玻璃中观察到大约 4.2 倍的发光增强，这归因于 Au 和 Ag 纳米颗粒引起的辐射衰减率和激发场增强的增加。