调光生态膜光学性能研究

Study on the Optical Nature of Light Adjusting Ecological Film

为提高光合作用效率 ,促进农作物早熟、增产 ,根据叶绿素进行光合作用所需的吸收谱 ,采用新型有机共轭分子化合物按一定比例分散到聚烯烃化合物中 ,可产生与叶绿素吸收谱匹配的荧光谱 ,从而实现对太阳光谱中不同波段光的红移。对调光膜进行光学性能研究 ,结果表明 :直射光透光率略低于普通膜 ,而散射光的透光率大于普通膜 ;红橙光波段调光度较高 ,蓝紫光波段的调光度较低 ;光学稳定性早期衰减较大 ,但逐渐趋于平稳。

A fluorescence spectrum is able to be made to match the absorption spectrum of the chlorophyll during photosynthesis, by using a new organic conjugated compound dispersed in polythene in two dimensions. The light in different wave bands in the solar spectrum can thus be shifted to wards the red end of the spectum. The optical nature of the film has been invertigated. It is found that its transmittance of direct light is slightly smallen than that of common film, but the transmittance of dispersed light is big, the rate of light adjustment is high between orange light and red light, but low between violet light and blue light, the optical stability decreases remarkably initially but becomes constant gradually.