有机太阳能电池因其可以制备柔性大面器件成为了能源领域的一个热门方向。有机半导体活性层的薄膜微结构，包括结晶结构和相分离结构，是影响器件效率的关键因素。软X射线共振散射方法是表征相分离结构的最有效手段，虽然国内有很多研究组都在使用，但是国内没有相应的测试装置，相关的方法学研究也还需要进一步深入。. 因此本项目拟根据科研需要在上海光源搭建并完善一套同步辐射软X射线共振散射测试系统，同时开展相关方法学研究。之后将其与我们已经建立的掠入射X射线衍射测试等方法一起并用系统地研究分子结构、制膜条件、薄膜微结构与光电性能之间的影响，为有机太阳能电池性能的进一步提高提供新的思路与方法。本项目的开展会使得我国在此方法上的表征和研究水平达到世界一流水平，为未来上海光源/合肥光源后期建设以及新北京光源的建设提供有力的技术支撑。

Organic solar cell is a hot research area in energy field due to its ability to produce soft large-area devices. The microstructure of organic semiconductor layer, including crystalline structure and phase-seperation structure, dramatically influence the device performance. Although resonant soft X-ray scattering is a powerful method to characterize the phase-seperation structure and is widely used by many Chinese research group, there is no such measurement system in China yet and the development of corresponding methodology is also needed.. This project will set up a synchrontron resonant soft X-ray scattering system in SSRF and carry out study of corresponding methodology. Then with the method such as grazing incidence X-ray diffraction that we set up early, we will systematically study the realtionship between molecualr structure, thin film fabrication method, microstructure and optic-electronic properties to provide new idea and method for high performance organic solar cells. This project will also raise the chacteriaztion and study level to the top of the world and facilitate the development of SSRF, NSRL and HEP.