Birefringence in Me-CdP2 photodiodes
In the paper it is researched the spatial dispersion in CdP2 crystals. The dispersion is positive nk||c> nk||y in the e>e0 region and negative nk||c < nk||y in e<e0 region. CdP2 crystals are isotropic in case of e0=896nmand a transmission maximum is observed in case of cross polarizers (iÂÂn=noÂÂ ne=0). The refractive index nk||c is higher in the longwavelength region in reference to e0 than the refractive index in case of nk||y polarization, the dispersion is positive. In the shortwavelength part an inverse dependence is observed and the dispersion is negative. Current-voltage characteristics had been researched for Me-Cdp2 diodes at different temperatures, temperature dependencies of ÂÂimperfectionÂÂ coefficient a for different Schottky barriers.The voltage dependence of capacitance had been studied for Me-Cdp2 photodiodes obtained by electro-chemical deposition of metal and thermo-chemicalmetal spraying in vacuum. The dependence of diffusion potentialiÂÂiÂÂ on themetalwork function im(C) has been revealed. The influence of birefringence and gyration on spectral characteristics of p-n photodiodes and Schottky diodes has been determined. The ability of controlling photodiodesÂÂ characteristics was obtained using the features of gyration in CdP2crystals.