Enhancement of Pr3+ luminescence in PbO-GeO2 glasses containing silver nanoparticles -: art. no. 241914
Enhancement of Pr3+ luminescence in PbO-GeO2 glasses containing silver nanoparticles -: art. no. 241914
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DOI：
10.1063/1.2143135
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发表时间：
2005-12-12
影响因子：
4
通讯作者：
Kassab, LRP
中科院分区：
文献类型：
--
作者：
Naranjo, LP;de Araújo, CB;Kassab, LRP
制备了含银纳米颗粒的Pr3+掺杂PbO-GeO2(PGO)玻璃，并对其光谱特性进行了研究。将起始氧化物粉末熔融、淬火、退火，得到了PgO样品和银Np的形核。用透射电子显微镜表征了纳米粒子的尺寸分布。观察到平均直径为2 nm的孤立银颗粒和尺寸小于100 nm的聚集体。通过光吸收和发光实验研究了该复合体系的性质。由于银纳米粒子的存在，Pr3+离子的发光增强。(C)2005年美国物理研究所。
Pr3+-doped PbO-GeO2 (PGO) glasses containing silver nanoparticles (NPs) were prepared and their spectroscopic characteristics were studied. The PGO samples and the nucleation of silver NP were obtained melting the starting oxide powders, quenching and annealing. Transmission electron microscopy was used to characterize the NP size distribution. Isolated silver particles with average diameter of 2 nm and aggregates with dimensions smaller than 100 nm were observed. Optical absorption and luminescence experiments were performed to investigate the properties of the composite system. Enhancement of the Pr3+ ions' luminescence was observed due to the presence of the silver NP. (c) 2005 American Institute of Physics.