新型双波段光能转换薄膜材料的研究与应用

Not all solar energy are beneficial to plant growing. For example, ultraviolet light is harmful, for the energy of ultraviolet photons is sufficiently high to induce bond scissions in polymer materials, which may result in sub sequent chemicaormer facilitating the formation of the chloroplast and the latter activating its ability of photosynthesis. The current agriculture plastic films are at most durable, antifogging and anti-adhesive except the basic function of light-transparency and warm keeping, which can't make good use of solar energy. So it is necessary and significant to develop light-conversion reactions. Besides, it accelerates the aging of plant stalk and induces the breeding of bacteria in soil; yellow-green light is neutral, doing no harm or good to photosynthesis. Only blue and red lights are advantageous, the film to convert useless sunlight to useful one. The key technology lies in the development of light conversion material.. In the work, we aim to design and synthesize two complexes (or one complex itself) as light-conversion materials, which is stable and don't affect each other. Then the composite ratio between them and the optimum proportion of the obtained composite material in PVC resin is determined by spectrometry. With these parameter the di-waveband light-conversion PVC film was manufactured. In addition, comparison of some physical characteristics and thermodynamics property between light-conversion PVC film and traditional one is studied and the results is satisfactory. The novel film can enhance photosynthesis, raise the quality and quantity of products, mature products ahead of time and reduce plant disease etc.. The outcome is greatly significant in large-scale and high-tech planting, especially after China's entry into WTO.

从分子结构设计出发，合成吸收近紫外光、荧光量子产率高的配合物I（发蓝光）和配合物II（发红光），复合成光能转换材料，研制吸收近紫外光同时发红光和蓝光的薄膜。用AFM和STM等研究薄膜的表面形貌和标度特性，以获得的最强光转换薄膜的生产工艺控制条件。研制的薄膜对农作物能加强光合作用、抑制病菌发生、增产增收，且薄膜抗老化作用也得到加强。.