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To show the effect of gamma radiation, Au/ Polyvinyl Alcohol (Co, Zn-doped)/n-Si Schottky barrier diodes (SBDs) were exposed to 60 Co c-ray source at room temperature. These structures were investigated by using current-voltage (I-V), capacitance-voltage (C-V), and conductance-voltage (G/x-V) measurement methods before and after irradiation. The C-V and G/x-V measurements were carried out at 1 MHz. The density of interface states (N ss ) as a function of E c -E ss was obtained from the forward bias I-V data by taking into account the bias dependence effective barrier height (U e ) and series resistance (R s ) of device at room temperature. Experimental results show that the values of ideality factor (n), R s , and N ss increased after gamma irradiation. It was found to degrade the reverse leakage current with radiation whereas its effect on the forward I-V characteristics was negligible. The results show that main effect of the radiation is the generation of N ss with energy level within the forbidden band gap of Si between polymer and semiconductor. In addition, the values of R s were determined from Cheung's method, and it was seen that these values increased with radiation effect. As seen I-V and C-V characteristics, the main electrical parameters such as ideality factor (n), R s , N ss were strongly influenced with the presence of radiation.

Nineteen antimony(III) complexes were obtained and examined as possible herbicides. Six of these were synthesized for the first time, and their structures were identified using elemental analyses, H-NMR,C-NMR, FTIR, LCMS, magnetic susceptibility, and conductivity measurement techniques. For the nineteen examined antimony(III) complexes their most-stable forms were determined by DFT/B3LYP/LanL2DZ calculation method. These compounds were examined for effects on photosynthetic electron transfer and carbonic anhydrase activity of photosystem II, and glutathione reductase from chloroplast as well were investigated. Our results indicated that all antimony(III) complexes inhibited glutathione reductase activity of chloroplast. A number of these also exhibited good inhibitory efficiency of the photosynthetic and carbonic anhydrase activity of Photosystem II.

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