Highly Efficiency Solar Energy Conversion Using Photointerface System

随着太阳能有效利用的重大技术发展，基于TiO2光功能界面的各种器件得到了广泛的研究。在这项研究中，我们调查了以下特别被认为在这类器件中起主要作用的因素。-染料敏化太阳能电池制造工艺的发展：关于湿式染料敏化太阳能电池，由于使用电解液，在稳定性和耐用性方面存在实际问题。为了解决这些问题，我们用CuI代替电解液作为p型半导体，制备了全固体型染料敏化太阳能电池。采用硫氰酸三乙胺作为CuI晶体的细化剂。利用CuI自动涂布装置制作的这种全固体染料敏化太阳能电池，实现了具有重复性的光伏转换效率。-低反射自清洁玻璃的研究：利用…由于TiO2光催化剂具有较高的折射率和光反射率，导致玻璃的透光率降低，使其具有较强的自清洁性能。为了解决这一问题，我们研制了一种使用二氧化硅颗粒和二氧化钛纳米颗粒的低反射自清洁玻璃。因此，我们成功地在玻璃基板上涂覆了一层二氧化钛-二氧化硅双层，具有很强的自清洁功能，最大透光率达到97%或更高。-光催化净水反应器的研究：一个光催化净水反应器可以一次处理10升水。它还可用于连续水流。-二氧化钛纳米纤维的研究：二氧化钛-二氧化硅纳米复合纤维是一种优良的材料，有望具有高的光催化性能、热稳定性和低热膨胀。本研究以P-25(Nippon Aerosil)为钛源，以正硅酸乙酯(TEOS)-聚二甲基硅氧烷(PDMS)溶胶复合材料为硅源，研究开发了二氧化钛-二氧化硅纳米复合纤维。基于这种方法，我们将纳米二氧化钛粒子植入二氧化硅纤维中，成功地制备了直径为500-700 nm的二氧化钛-二氧化硅纳米复合纤维，该纤维由具有高机械强度的二氧化钛-二氧化硅线性络合链组成。较少

Toward important technical developments in the effective use of solar energy, many devices by the application of photofunctional interface based on TiO2 have been investigated. In this research, we had investigated the followings that were particularly considered as playing the major roles in such devices.-Development of Fabrication Process of Dye-Sensitized Solar Cell: With regard to wet-type dye-sensitized solar cells, there have been practical problems in terms of stability and durability due to the use of an electrolyte. To solve the problems, we fabricated a complete-solid-type dye-sensitized solar cell by using CuI as a p-type semiconductor in place of an electrolyte. Triethylamine hydro-thiocyanate was used as a grain refiner of CuI crystal. With this complete-solid-type dye-sensitized solar cell made by using a CuI automatic application device, photovoltaic conversion efficiency with reproducibility was achieved.-Research on Low Reflectance Self-Cleaning Glass: The utilization … More of self-cleaning properties of photocatalyst for preventing stains on glass is disadvantageous in that the light transmittance of glass is reduced due to a high refractive-index and light reflectivity of TiO2. In order to solve this problem, we developed a low-reflectance self-cleaning glass using SiO2 particles and TiO2 nanoparticles. As a result, we succeeded in coating a glass substrate with a TiO2-SiO2 double layer, which showed a high self-cleaning function as well as a maximum light transmittance of 97% or higher.-Research on Water Purification Reactor using Photocatalyst: A photocatalyst water purification reactor can treat 10 liters of water at a time. It can also be used in continuous water flow. With this reactor, the degradation of thionine solution having reproducibility was confirmed.-Research on TiO2 Nano-Fiber: TiO2-SiO2 nano composite fiber is an excellent material that is expected to have high photocatalyst property, heat stability, and low thermal expansion. In this research, TiO2-SiO2 nano composite fiber was researched and developed on the basis of a new adjustment method that used P-25 (Nippon Aerosil) as Ti source and TEOS (Tetraethoxy-silane)-PDMS (Polydimethylsiloxane) sol composite as Si cource. By implanting TiO2 nanoparticles into a SiO2 fiber based on this method, we succeeded in developing a TiO2-SiO2 nano composite fiber having a diameter of 500-700nm and consisting of a TiO2-SiO2 linear complex chain with high mechanical strength. Less