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Nanocomposite films of Zinc Oxide and Silicon were grown by thermal evaporation technique using varying ratios of ZnO:Si in the starting material. Analysis reveal the role of ZnO and amorphous silicon interface in contributing to relatively less common blue photoluminescence emissions (at ∼ 400 and 470nm). These blue peaks are observed along with the emissions resulting from band edge transition (370nm) and those related to defects (522nm) of ZnO. Careful analysis shows that along with the grain size of ZnO, a suitable compositional ratio (of ZnO to silicon) is critical for the coexistence of all the four peaks. Proper selection of conditions can give comparable photoluminescence peak intensities leading to broadband emission.

The need for increased seed quality has become a priority necessary to face the current demand for high standards in the agricultural market. The various factors which contribute to the loss in seed quality, viability, and vigor which can be either physical or physiological. Seed deterioration and aging are considered as a force to reckon the depletion in food reserve, increased fat acidity, increased enzyme activity, and membrane permeability. Quality and viability of seed during storage processes chiefly depends upon the initial status of the seed health and the manner in which it is stored. Achieving appropriate techniques can help to curtail the current agricultural crisis leading to expose of healthy plantlets in the farming sector. This research review attempts to summarize and enlighten the various aspects of seed related features such as viability, aging, and deterioration.

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