提交时间: 2017-05-02
摘要: High fidelity and regularity structures of nanoscale materials has opened up new opportunities for developing miniaturized devices. A simple yet robust approach of magnetic field assisted controlled evaporative self-assembly [CESA] is developed to achieve
分类: 物理学 >> 普通物理:统计和量子力学,量子信息等 提交时间: 2017-05-02
摘要: The double-sided structural color of Fe3O4@SiO2 NPs under external electric field was found. Corre- sponding colloidal suspension of Fe3O4@SiO2 showed a highly adjustable structure color change on both sides of the display cell with the applying of electric fields. As the applied voltage increased, the color changed from red to green then to blue at positive plate, at the same time, the color changed from red to gray then to red at the negative plate. Under a certain electric field, the reflection peak move backwards within a particular range of wavelength. It may be caused by the emergence of another repulsive force- “solvation force” at small interparticle distances.