Controlling the Morphology and Interface of the Perovskite Layer for Scalable High-Efficiency Solar Cells Fabricated Using Green Solvents and Blade Coating in an Ambient Environment

Shih Han Huang, Kuo Yu Tian, Hung Che Huang, Chia Feng Li, Wei Cheng Chu, Kun Mu Lee, Yu Ching Huang*, Wei Fang Su*

*此作品的通信作者

研究成果: 期刊稿件文章同行評審

46 引文 斯高帕斯(Scopus)

摘要

Low-cost and solution-processed perovskite solar cells have shown great potential for scaling-up mass production. In comparison with the spin coating process for fabricating devices with small areas, the blade coating process is a facile technique for preparing uniform films with large areas. High-efficiency perovskite solar cells have been reported using blade coating, but they were fabricated using the toxic solvent N,N-dimethylformide (DMF) in nitrogen. In this work, we present highly efficient blade-coated perovskite solar cells prepared using a green solvent mixture of γ-butyrolactone (GBL) and dimethyl sulfoxide (DMSO) in an ambient environment. By carefully controlling the interface, morphology, and crystallinity of perovskite films through composition variations and additives, a high power conversion efficiency of 17.02% is achieved in air with 42.4% reduction of standard deviation in performance. The findings in this work resolve the issues of scalability and solvent toxicity; thus, the mass production of perovskite solar cells becomes feasible.

原文英語
頁(從 - 到)26041-26049
頁數9
期刊ACS Applied Materials and Interfaces
12
發行號23
DOIs
出版狀態已出版 - 10 06 2020

文獻附註

Publisher Copyright:
© 2020 American Chemical Society.

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