Sequential Dip-spin Coating Method: Fully Infiltration of MAPbI 3-x Cl x into Mesoporous TiO 2 for Stable Hybrid Perovskite Solar Cells
Type
ArticleKAUST Department
Physical Science and Engineering (PSE) DivisionDate
2017-05-31Online Publication Date
2017-05-31Print Publication Date
2017-08Permanent link to this record
http://hdl.handle.net/10754/624045
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Show full item recordAbstract
Organic-inorganic hybrid perovskite solar cells (PSCs) have reached a power conversion efficiency of 22.1% in a short period (∼7 years), which has been obtainable in silicon-based solar cells for decades. The high power conversion efficiency and simple fabrication process render perovskite solar cells as potential future power generators, after overcoming the lack of long-term stability, for which the deposition of void-free and pore-filled perovskite films on mesoporous TiO2 layers is the key pursuit. In this research, we developed a sequential dip-spin coating method in which the perovskite solution can easily infiltrate the pores within the TiO2 nanoparticulate layer, and the resultant film has large crystalline grains without voids between them. As a result, a higher short circuit current is achieved owing to the large interfacial area of TiO2/perovskite, along with enhanced power conversion efficiency, compared to the conventional spin coating method. The as-made pore-filled and void-free perovskite film avoids intrinsic moisture and air and can effectively protect the diffusion of degradation factors into the perovskite film, which is advantageous for the long-term stability of PSCs.Citation
Kim W, Park J, Kim H, Pak Y, Lee H, et al. (2017) Sequential Dip-spin Coating Method: Fully Infiltration of MAPbI 3-x Cl x into Mesoporous TiO 2 for Stable Hybrid Perovskite Solar Cells. Electrochimica Acta. Available: http://dx.doi.org/10.1016/j.electacta.2017.05.184.Sponsors
This work was supported by the Pioneer Research Center Program (NRF-2016M3C1A3908893) and by the Basic Science Research Program (NRF-2016R1A2B4006395) through the National Research Foundation of Korea (NRF) funded by the Ministry of Education. The research was partially supported by the GIST Research Institute (GRI) project through a grant provided by GIST in 2017.Publisher
Elsevier BVJournal
Electrochimica ActaAdditional Links
http://www.sciencedirect.com/science/article/pii/S0013468617312185ae974a485f413a2113503eed53cd6c53
10.1016/j.electacta.2017.05.184