期刊
ACS APPLIED ENERGY MATERIALS
卷 1, 期 5, 页码 1853-1857出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.8b00328
关键词
perovskite solar cell; solution processing; ultrasonic spraying; scalable atmospheric deposition; wide processing window ink
资金
- EPSRC Supergen SuperSolar Hub [EP/J017361/1]
- Solar Energy Research Institute for India and the U.S. (SERIIUS) - U.S. Department of Energy [DE AC36-08G028308]
- Office of International Affairs
- Government of India [IUSSTF/JCERDC-SERIIUS/2012]
- [EP/N026438/1]
- EPSRC [EP/N026438/1, EP/N508457/1, EP/P02484X/1, EP/J017361/1, EP/M014797/1] Funding Source: UKRI
Spray-deposition is a low-cost, roll-to-roll compatible technique that could potentially replace spin-coating for the deposition of highly efficient perovskite solar cells. Here, perovskite active layers were fabricated in air using an ultrasonic spray system and compared with equivalent spin-coated films. A chlorine-containing perovskite ink with a wide processing window coupled with an antisolvent extraction resulted in perovskite films with relatively rougher surfaces than those spin-coated. A power conversion efficiency (PCE) of 17.3% was achieved with an average of 16.3% from 24 devices. Despite observing differences in film roughness and structure, the performance of sprayed perovskite solar cells was comparable to that of the spin coated cells processed in an inert atmosphere, showing the versatility of perovskite processing.
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