Application Base Research On Solar Cell Of Micro Structures Mimicking Butterfly Wing Scales

Human beings have to seek new renewable energy power because traditional fossil energy sources dried up and using them have brought the huge pollution to the environment.Solar cells as the easiest to use solar energy which is a clearly and renewable energy source have been in a hot research and widely used in aerospace and other special areas.However,the shorter service life and low photoelectric conversion efficiency have already limited the solar cells development.Nature’s creatures can adapt to the complex natural environment from one hundred million years of natural selection and evolution.The study found that the surface of the butterfly wings tile sheet arranged scale structure with super hydrophobic and the clean.Drawing lessons from excellent broadband light absorption characteristics and self-cleaning feature of the butterfly wings micro-nano structure to meet the Performance requirements of the solar cell.Undertaking basic research to provide the theory support and technical support for the design of the structure of the solar battery,improve the photoelectric conversion efficiency and stability of the solar cell, provide new methods and new technologies to promote application of solar energy products in various fields.Experimental study and theoretical analysis have been combined to explore the butterfly wings scales from clean and light absorption properties.The micron grade tile pattern structure of scales and nano-sized ridge and veins bulge form multistage rough on the surface of the butterfly wings through analyzing the microscopic morphology and structure of papilio ulysses,Papilio maackii,Graphium Weiskei and Euploea mulciber.Combining with Young equation,the multistage structure formed a super hydrophobic surface of butterfly wings ability and the self-cleaning function.The three-dimensional structure is built based on their micro-structure.Optical experiments is designed to study the performance of Butterfly Wings reflection in the visible light, reveals the relationship between optical properties with the structure and morphology. According to micro-structure, morphology and reflection properties,a simplified multilayer film structure parallel and split-level structure of the bionic tower model are founded.The model simulation experiment is done with anti-reflection thin film and RSOFT and the result is consistent with the actual data,indicate that the film has good transmission performance and better anti-reflection effect when the film refractive index less than the refractive index of the substrate.The reflection spectral peak will be shifted to a longer wavelength when the thickness of the film is changed.The conclusion reveals that the micro-structure of Butterfly wings is applied to the surface of the solar cell structure design is feasible,which provide a theoretical basis and technical support to design a wide band prepared both wide-angle high absorption characteristics,offer theories, methods and tools to improve the photoelectric conversion efficiency of solar cells and stability,to promote the development of solar technology.