Open AccessEffects of anti-solvent in the two-step fabrication of absorber layer in perovskite solar cells
Author(s) -
Kwanruthai Butsriruk,
Thiti Taychatanapat,
S. Chatraphorn
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1380/1/012046
Subject(s) - chlorobenzene , perovskite (structure) , spin coating , materials science , layer (electronics) , spinning , perovskite solar cell , iodide , chemical engineering , solar cell , solution process , energy conversion efficiency , solvent , toluene , fabrication , coating , inorganic chemistry , nanotechnology , chemistry , polymer chemistry , organic chemistry , optoelectronics , catalysis , medicine , alternative medicine , pathology , engineering
Hybrid organic-inorganic perovskite materials, e.g., CH 3 NH 3 PbI 3 (MAPbI 3 ) have been used as photon absorber layer in the emerging solar cell technology. The two-step spin coating technique has been employed to fabricate the absorber films. It has been found that the use of anti-solvents plays a crucial role on the growth of the perovskite crystals. Chlorobenzene (CB) and Toluene (TO) were chosen as the anti-solvents that were applied after spin-coating of Methylammonium Iodide (MAI) solution in the second step of the two-step process. The amount and the elapsed time of the application of anti-solvents after spinning MAI solution were varied and studied for the crystal growth of perovskite films as well as the performance of the perovskite solar cells (PSCs). It was found that 50 ml of CB applied at 5 s after spinning MAI solution yielded the best solar cells parameters with the best efficiency of 16.8 %.