Uniformly oriented, ellipsoidal nanovoids in glass created by electric-field-assisted dissolution of metallic nanoparticles
Uniformly oriented, ellipsoidal nanovoids in glass created by electric-field-assisted dissolution of metallic nanoparticles
复制标题
通过电场辅助溶解金属纳米粒子在玻璃中产生均匀取向的椭圆形纳米空隙
DOI：
10.1103/physrevb.79.153408
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发表时间：
2009
影响因子：
3.7
通讯作者：
G. Seifert
中科院分区：
文献类型：
--
作者：
M. Leitner;H. Peterlik;B. Sepiol;H. Graener;Moritz Beleites;G. Seifert
通过电场辅助溶解嵌入玻璃-金属纳米复合材料中的银纳米颗粒，分别制备了含有球形或椭球形纳米空隙的纳米多孔玻璃。在颗粒溶解之前和之后的小角X射线散射给出证据，在球形纳米颗粒的情况下，剩余的纳米空隙具有与原始银颗粒相同的尺寸分布（平均直径）。均匀取向的球形颗粒留下强烈的非球面纳米空隙，其经历从纵横比4.7（颗粒）到3.8（孔）的轻微形状松弛。
Nanoporous glass containing spherical or ellipsoidal nanovoids, respectively, has been produced by electric-field-assisted dissolution of Ag nanoparticles embedded in glass-metal nanocomposites. Small angle x-ray scattering before and after particle dissolution gives evidence that in the case of spherical nanoparticles the remaining nanovoids have the same size distribution (average diameter) as the original silver particles. Spheroidal particles of uniform orientation leave strongly aspherical nanovoids, which undergo a slight shape relaxation from aspect ratio 4.7 (particles) to 3.8 (holes).