A systematic study of the effect of microstructure on the EL properties of ZnS:Er thin film devices fabricated by thermal evaporation was carried out using XRD,
The effect of hydrogen passivation on multicrystalline silicon (mc-Si) used for solar cells is described, and the mechanism of hydrogen diffusion and passivatio
The a-Si∶H/SiNx∶H sample series are investigated by means of Raman scattering technique(RST). The result shows that due to the structural mismatch between a-S
The optical parameters for three samples of intrinsic,doped Si and doped Mg(AlxGa1-x)yIn1-yP prepared by the MOCVD on GaAs substrate were measured by using ellip
Using double crystal X-rays diffraction(DCXRD)and atomic force microscopy(AFM),the results of GexSi1-x grown UHV/CVD from Si2H6 and SiH4 are analyzed and compa
Using optical fiber fluorescent technology,a new method for measuring alga concentration in water is presented. The system can realize on-line measurement for al
Fiber-optic Mach-Zehnder interferometer(MZI) can be used as wavelength-multiplexers and demultiplexers. The △L and △φ directly influence the properties of MZ
A novel kind of optical fiber instrument for two-channel measurement of temperature and displacement was developed. Four-channel quartz fiber optics were employ
Autofluorescence spectra from the serum of health man and cancer patients have been measured and analyzed.Two obviously spectra characteristics of the serum hav