Poling-assisted bleaching of metal-doped nanocomposite glass
Poling-assisted bleaching of metal-doped nanocomposite glass
复制标题
金属掺杂纳米复合玻璃的极化辅助漂白
DOI：
10.1063/1.1779966
复制
发表时间：
2004
影响因子：
4
通讯作者：
H. Graener
中科院分区：
文献类型：
--
作者：
O. Deparis;P. Kazansky;A. Abdolvand;A. Podlipensky;G. Seifert;H. Graener
通过对掺有球形或椭球形银纳米颗粒的钠钙玻璃进行热极化，揭示了纳米复合材料物理学中一个普遍感兴趣的现象：金属纳米颗粒在玻璃中的场辅助溶解。宏观上，这种现象表现为玻璃的极化辅助漂白，在这个意义上，玻璃在阳极下变得更透明（或甚至完全透明）。该现象被物理解释为金属纳米团簇的电离，然后从团簇中去除离子及其在深度上的漂移，在极化期间在阳极表面下方产生的极高电场的作用下。潜在的物理机制，预计将提供独特的机会，纳米复合玻璃的结构和光学性能的控制。
Thermal poling of soda-lime glass which was doped with spherical or ellipsoidal silver nanoparticles has revealed what we believe to be a phenomenon of general interest in the physics of nanocomposite materials: The field-assisted dissolution of metal nanoparticles embedded in glass. Macroscopically, this phenomenon manifested itself as poling-assisted bleaching of the glass in the sense that the glass became more (or even completely) transparent under the anode. The phenomenon is physically interpreted in terms of the ionization of metal nanoclusters followed by the removal of ions from the clusters and their drift in the depth, under the action of the extremely high electric field which is created underneath the anodic surface during poling. The underlying physical mechanism is expected to offer unique opportunities for the control of structural and optical properties of nanocomposite glasses.