Proceedings of MATSUS Fall 2024 Conference (MATSUSFall24)
Publication date: 28th August 2024
Perovskite solar cells (PSCs) manufactured by the solution process are greatly affected by the dripping speed of the solution and the time interval between each layer process in PSCs. In the case of PSCs produced by human, it is difficult to control these process variables and to compare the condition-specific performance excluding variables. We introduced an automation process using a robot that automatically performs the solution process according to the input process program. The reproducibility of the experiment has been improved by using the robot. Through the automation process, we compared the device performance according to the dripping speed for each dielectric constant of the perovskite anti-solvents such as Toluene, Diethyl ether, Ethyl acetate, Trifluorotoluene. The hole transport layer (HTL), interlayer, and perovskite layer were spin-coated by robot. In addition, the electron transport layer (ETL) and metal electrode were deposited by vacuum evaporation to produce a p-i-n structured PSCs. By this method, the highest power conversion efficiency (PCE) was obtained at 19.84% when manufactured using toluene as perovskite anti-solvent. Uniform performance was obtained for devices manufactured under the same conditions. The automation process using robot is expected to greatly contribute to the research and commercialization of PSCs.
Acknowledgement) This research was supported by the Digital Research Innovation Institution Program Through the National Research Foundation of Korea (NRF) funded by Ministry of Science and ICT (RS-2023-00283597)
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