Hai Ning Cui

Investigation on the Effect of Gallium on the Efficiency of CIGS Solar Cells through Dedicated Software

This work reports on the analysis of thin-film copperindiumgalliumdiselenide (CIGS) solar cells by using Solar Cell Capacitance Simulator software (SCAPS). We have modeled a PV device, which consists in a CIGS absorber, a CdS buffer and a ZnO window layer. We have studied the behavior of CIGS absorber as a function of Gallium content by simulating the behavior of CIGS solar cells versus the Ga content in the absorber layer.

The Molecular Orientation in Monomolecular Layer of Synthesized Porphines-ZnTPP and Copper (II) Phthalocyanine

Systematic research on Monomolecular Layer of Copper (II) Phthalocyanine (CuPc) and porphyrin (Por) derivatives bas been done. In this paper an attention is focused upon the molecular orientation in monomolecular layer of some symmetrically and asymmetrically substituted CuPc and Por by means of the surface pressure-area (π-A) isotherm method, the transmission electron micrographs (TEM) , polarized UV-visible spectra.

The Influence of Top Layer on ZnO/Cu2S/ZnO Films in Optoelectric and Photocatalytic Performance

In this paper, the ZnO/Cu2S/ZnO complex films were fabricated by Radio Frequency (RF) magnetron sputtering, and their transparent, conductive and photocatalytic properties have been investigated. The results show the properties of ZnO/Cu2S/ZnO complex films vary when the top layer ZnO thickness changes.

The Preparation and Electrochromism Property of Vanadium Pentoxide

The V2O5 films were prepared by the (radio frequency)RF sputtering. The transmission of the samples under different deposition pressures and different Ar/O2 flow ratios was investigated to determine the fundamental preparation condition for the further analysis. On the fundamental condition, the security volt of V2O5 was determined. It is concluded that the annealing makes the V2O5 films have a good reversibility but lowers the electrochromic property.

Polarized Infrared and Raman Spectra on Molecular Orientation of Phthalocyanine Derivatives in Nanolaminated Films

The orientation of the hydrocarbon chains and functionally important chromophore of copper (II) phthalocyanine (CuPc) derivatives are discussed by spectrum assessment methods in ordered thin films. The attention is focused upon the monolayer and multilayer films of CuPc derivatives that are symmetrically and asymmetrically substituted CuPc biosimulation systems. On the basis of infrared (IR) transmission, polarized IR, reflection–absorption (RA) IR spectroscopy and surface enhancement resonance Raman spectra (SERRS) study, following conclusions are given. The hydrocarbon chains of CuPc in the film are in hexagonal or pseudohexagonal subcell packing, and the CH2 asymmetric vibrational vector is oriented with respect to the substrate surface. The macrocycle of CuPc on the Ag substrate is oriented parallel to the surface, and the RA spectroscopy can distinguish the two CH2 stretching modes of benzene cycle. All these studies and results are useful to provide an insight into the nanostructure of the thin films of other kinds of compounds.

Preparation and Characterization of CdS by Evaporation and Cu2S Complex Photoelectric Thin Films

Cadmium sulfide (CdS) film by evaporation deposition and CdS/Cuprous sulfide (Cu2S) complex film by dipping were obtained on glass substrates. The influence of different annealing temperatures was investigated. Scanning electron microscopy (SEM) demonstrates CdS films are continuous, homogeneous. X-ray diffraction (XRD), photoluminescence (PL) and Raman spectra reveal the CdS films were hexagonal structure and 400°C is favor of the crystallization and aggregation. The conductivity of CdS/Cu2S complex film is better than that of CdS film.

Investigation on Micro Defects of the Protective Coating SiOx in Mass Manufacturing Processes

A transparent hard coating of silicon oxide (SiOx) deposited by using plasma enhanced chemical vapour deposition (PECVD) can protect the surfaces of plastics and metals. This coating has good adhesion, good wear-resistance and environmental resistance. Our work is to optimize this protective organosilicon film in an industry manufacturing process for the metal cover of mobile phones and plastic lenses. Investigation of the failures of the film and analysis of the defect in deposited films by means of the optical microscope and atomic force microscope (AFM) shows that mechanism of the micro defect with Newton color rings.