Journal
SOLAR RRL
Volume 4, Issue 10, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/solr.202000337
Keywords
active layer materials; grazing incidence wide-angle X-ray scattering; optimization of film morphology; organic solar cells; relationship of chemical structure and performance
Funding
- National Natural Science Foundation of China [21672023, 21971014, 21950410533]
- National Key Research and Development Program of China [2018YFA0901800]
- Thousand Youth Talents Plan of China
- BIT Teli Young Fellow Recruitment Program
Ask authors/readers for more resources
In recent years, a rapid evolution of organic solar cells (OSCs) has been achieved by virtue of structural design of active layer materials and optimization of film morphology. Along with other characterization techniques, grazing incidence small- and wide-angle X-ray scattering (GISAXS and GIWAXS) have played significant role in deeper understanding of film morphology. Herein, the importance of these techniques is explained with examples from various aspects of OSCs. Different pre- and post-processing conditions such as solvent effect, solvent additive, solvent, and thermal annealing are studied in the framework of these techniques. Moreover, the impact of donor:acceptor ratio and molecular weight of semiconductor on microstructure is also explored. Finally, the effect of chemical structure of organic semiconductors (both polymers and small molecules) on the film morphology is discussed. These techniques provide valuable information about crystallinity, phase separation, and domain size of nanostructured film morphology, which helps to optimize the film morphology and enhances the performance of OSCs. The role of these techniques will become more important as the mystery of film morphology still has to be solved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available