Journal
JOURNAL OF PHYSICS D-APPLIED PHYSICS
Volume 52, Issue 3, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1361-6463/aaebf1
Keywords
sustainability; solar; perovskite; evaporation; solvent-free
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Funding
- school of engineering at Hong Kong University of Science and Technology
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FAPbI(3) perovskites are excellent candidates for fabrication of perovskite solar cells (PSCs) with high efficiency and stability. However, these perovskites exhibit phase instability problem at room temperature. In this work, to address this challenge we use methylanunonitun chloride (MACI) as an additive and employed a layer-by-layer thermal evaporation technique to fabricate high-quality perovskite films on a large scale of 25 cm(2). The optimized perovskite films show high crystallinity with large grains in the mu m-range and reveals phase stability due to the presence of MACI after the annealing process. Finally, we achieved PSCs with 17.7% and 15.9% for active areas of 0.1 cm(2) and 0.8 cm(2), respectively.
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