Morphology Analysis of Organic Solar Cells with Synchrotron Radiation Based Resonant Soft X-Ray Scattering

被引:64
作者
Wu, Yang [1 ]
Wang, Zaiyu [1 ]
Meng, Xiangyi [1 ]
Ma, Wei [1 ]
机构
[1] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
基金
中国国家自然科学基金;
关键词
organic solar cells; morphology characterization; resonant soft X-ray scattering; MOLECULAR-ORIENTATION; ELECTRON-ACCEPTORS; DOMAIN PURITY; POLYMER; EFFICIENT; FULLERENES; PAIR;
D O I
10.7536/PC160444
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
It is known that the active layer morphology of bulk heterojunction organic solar cells has significant impact on the performance of solar cell devices. However, the widely used morphology characterization methods such as transmission electron microscopy (TEM), atomic force microscopy (AFM) have certain limitations in the characterization of organic thin film materials. By using the huge difference of the refractive index of the different materials under the soft X-ray, resonant soft X-ray scattering (R-SoXS) provides highly enhanced contrast, overcomes the drawbacks such as low contrast between/among different organic components and the lack of 3D information, which is important to obtain the phase separation information in the active layer of organic solar cells, to understand the microstructure, and to establish the relationship between the morphology and the photoelectric conversion process. This article provides an overview of the effect of active layer morphology on the performance of bulk heterojunction organic solar cells, introduces the developing process, theoretical background and the analysis method of resonant soft X-ray scattering. Based on these, the application of resonant soft X-ray scattering in the study of the morphology of organic solar cells is reviewed. The application prospects of R-SoXS are also discussed.
引用
收藏
页码:93 / 101
页数:9
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