Now our work contains 3 parts:


1. TiO2 nanostructures and application in solar celles and photocatalyst 

TiO2 as a wide band gap semiconductor, is extensively employed in the energy harvest, conversion and storage due to its good electron transfer capability. Here we fabricated mesoporous anatase TiO2 microsphere with exposed high energy {001} facet. Its potential applications are in the photocatalyst, solar cell and lithium battery.

2. Nanostructure solar cell. The morphology of the active layer is a key factor of the photovoltaic (PV) device, because the exciton diffusion and charge transportation strongly depend on the morphology of active layer.1D nanowire array is an ideal nanostructure for PV device. The preparation of 1D nanowire array is our another project.

Figure 2. ZnO nanowire array grow by hydrothermal method without(A) and with (B) block copolymer.

3. Surface plasmon resonance of metal nanoparticles. Surface plasmons, also known as surface plasmon polaritons, are surface electromagnetic waves that propagate in a direction parallel to the metal/dielectric (or metal/vacuum) interface. Since the wave is on the boundary of the metal and the external medium (air or water for example), these oscillations are very sensitive to any change of this boundary, such as the adsorption of molecules to the metal surface. Now the surface plasmon resonance is employing on the PV device inorder to enhance the light adsorption of active layer.

Figure 3. The plasmonic adsorption band of Ag nanoparticle and the photography of Ag nanoparticles solution