Journal
SOLAR ENERGY
Volume 204, Issue -, Pages 337-345Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.solener.2020.05.003
Keywords
Perovskite solar cell; Thermal assisted blade coating; Large area; Sub-module; Non-toxic solvents
Categories
Funding
- Ministry of Science and Technology, Taiwan [MOST 108-2628-E-182-003-MY3]
- Chang Gung University [QZRPD181]
- Chang Gung Memorial Hospital, Linkou [CMRPD2J0041]
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Atmospheric thermal assisted blade coating (TABC) method, which is quick film crystallization and easier fabrication than the commonly used spin-coating process, to prepare a high quality CH3NH3PbI3 perovskite film is investigated in this work. Selection of the perovskite precursor solvents and controlling the ratio of the mixed solvent as well as substrate temperature for perovskite film formation are important factors in this TABC process. Based on the results obtained in this work, substrate temperature is the key factor for managing the perovskite film phase transition which influences the film roughness and crystallinity. Furthermore, the high-quality perovskite films are prepared by perovskite precursors with mixture of solvents containing GBL/DMSO at the ratio from 1/9 to 5/5. By using the optimum substrate temperature of 130 degrees C and the GBL/DMSO solvent ratio of 1/9 (G01D09) for the preparation of small area n-i-p and p-i-n PSCs as well as the p-i-n type perovskite sub-module, the power conversion efficiencies of 17.55%, 16.90% and 13.03%, respectively, are acquired under the illumination of 100 mW/cm(2) (AM 1.5G).
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