By means of analyzing the impact of surface charge accumulation and free metallic conducting particles on surface discharge of insulators, it is pointed out the that the surface charge accumulation and the adhesion of free metallic c.

The motion characteristics of spherical and filamentary conducting particles near polytetrafluoroethylene( PTFE) spacer between divergingly settled electrodes is experimentally investigated under AC voltage based on the video records of the particle motion trajectories and the motion onset voltage.

Computing model of electrostatic force acting on a free conducting particle near spacer in inhomogeneous field distributing between diverging electrodes is built.

The photocatalytic effect of the semiconductor particle has the important application in environmental protection, water treatment, organic substance degradation, and degradation of invalid pesticide, so people have tried hard to find the materials that have higher photocatalytic effect and are cheaper and more sensitive to the sunlight.

This paper reviews some methods for constructing semiconductor nanoparticles/PANI composite materials,which were developed by us in recent years.

In-situ preparation of semiconductor nanoparticles in polymer network, surface modification of nanoparticles with organic or inorganic molecules and assembly of nanoparticles in bulk or film materials are introduced in this article.

Semiconductor nanoparticles, which own large nonlinear refractive index and fast response speed, have been extensively studied in the last decades.

Semiconductor nanoparticles possess many unique optical properties, high surface-to-volume ratio and other properties related to their nanometer dimension.