论文标题
金属纤维janus颗粒的电代替和电旋转
Electro-Orientation and Electro-Rotation of Metallodielectric Janus Particles
论文作者
论文摘要
分析和实验验证了金属纤维（MD）球形JANUS颗粒（MD）球形JANUS颗粒（JP）的电代理（EOR）行为（EOR）行为。这与以前的JP偶极子的启发式或数值计算的模型相反。首先，我们通过应用标准（弱场）电动模型并使用傅立叶 - 静脉搭配方法来求解两组线性方程，从而获得了由介电和金属半球组成的JP相应偶极子项的频率分析表达式。 EROT和EOR光谱，描述了JP角速度在旋转和非旋转空间均匀电场的强迫频率上的变化，并与实验（不同的JP尺寸和溶液电导率）进行了比较。发现理论与实验测量之间有一个有利的定性一致性。
The electro-rotation (EROT) and electro-orientation (EOR) behavior of metallodielectric (MD) spherical Janus particles (JP) are studied analytically and verified experimentally. This stands in contrast to previous either heuristic or numerically computed models of JP dipoles. First, we obtain frequency-dependent analytic expressions for the corresponding dipole terms for a JP composed of a dielectric and metallic hemispheres, by applying the standard (weak-field) electrokinetic model and using a Fourier-Legendre collocation method for solving two sets of linear equations. EROT and EOR spectra, describing the variation of the JP angular velocity on the forcing frequency of a rotating and non-rotating spatially uniform electric field, respectively, are explicitly determined and compared against experiments (different JP size and solution conductivity). A favorably good qualitative agreement between theory and experimental measurements was found.
