Scholarly record
OBTAINING NANOFIBERS BASED ON PEROVSKITE-POLYMER COMPOSITES FOR APPLYING IN SOLAR CELLS
Abstract
Nanofibers have attracted a lot of attention for applying in the third and fourth generation of solar cells to enhance their performance. In this paper, we investigate the possibility of obtaining and using successfully high-quality nanofibers based on perovskite: polymer composites (PPCs) in perovskite solar cells. First, the advantages, challenges and development directions of employing nanofibers as active layers (ALs) in organic solar cells (OSCs) have been reported to establish the principles needed to prepare nanofibers based on PPCs and to determine the expected benefits that can be obtained from their inclusion in perovskite solar cells (PSCs) as ALs, such as enhanced morphology, as well as efficient charge separation, collection and transport. Then, we had to analyze properties of various bulk perovskite-polymer composites used as ALs in PSCs to justify their electrospinning ability and identify the main merits and problems that can be emerged. We found that due to the long diffusion length of charge carriers in perovskite materials, PPCs nanofibers will be promising active layers for improving the performance of PSCs. Furthermore, polymers used in PPCs should simultaneously improve the quality of the perovskite film (stability, morphology and crystallinity) and facilitate formation of the nanofibers. However, the difficulty of spinning the perovskite material remains the main challenge that need to be addressed. Finally, we think PPCs nanofibers or pure perovskite nanofibers will be widely utilized in various electronic and electrical applications.
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