硅酸盐玻璃中生成的PbSe纳米粒子的结构特征
Structural features of PbSe nanoparticles produced within the silicate glasses
摘要：
采用广角X射线衍射（WXRD）和小角中子散射（SANS）对PbSe掺杂硅酸盐玻璃进行了研究。由于在不同温度下的二次热处理而产生玻璃中的PbSe纳米颗粒，并且通过WXRD、SANS和TEM技术建立它们的外观，其中颗粒尺寸的结果与我们最近对该材料的光学研究一致。SANS测量的模拟揭示了PbSe纳米颗粒的新结构特征。它们形成分形聚集体，作为几个重叠的球体，全尺寸可达~30 nm。
英文摘要：
PbSe-doped silicate glasses were studied through wide-angle X-ray diffraction (WXRD) and small-angle neutron scattering (SANS). PbSe nanoparticles in the glasses were produced due to the secondary heat treatment at different temperatures and their appearance was established by WXRD, SANS, and TEM techniques with the results for particle sizes in accordance to our recent optical studies of this material. The simulation of SANS measurements revealed new structural features of the PbSe nanoparticles. They form fractal aggregates as several overlapping spheres up to ~30 nm in full size.
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