Thornber Timothy, Game Onkar S, Cassella Elena J, O'Kane Mary E, Bishop James E, Routledge Thomas J, Alanazi Tarek I, Togay Mustafa, Isherwood Patrick J M, Infante-Ortega Luis C, Hammond Deborah B, Walls John M, Lidzey David G
Department of Physics & Astronomy, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, United Kingdom.
Department of Physics, College of Science, Northern Border University, Arar 73222, Kingdom of Saudi Arabia.
ACS Appl Mater Interfaces. 2022 Aug 24;14(33):37587-37594. doi: 10.1021/acsami.2c05085. Epub 2022 Aug 3.
Spray coating is an industrially mature technique used to deposit thin films that combines high throughput with the ability to coat nonplanar surfaces. Here, we explore the use of ultrasonic spray coating to fabricate perovskite solar cells (PSCs) over rigid, nonplanar surfaces without problems caused by solution dewetting and subsequent "run-off". Encouragingly, we find that PSCs can be spray-coated using our processes onto glass substrates held at angles of inclination up to 45° away from the horizontal, with such devices having comparable power conversion efficiencies (up to 18.3%) to those spray-cast onto horizontal substrates. Having established that our process can be used to create PSCs on surfaces that are not horizontal, we fabricate devices over a convex glass substrate, with devices having a maximum power conversion efficiency of 12.5%. To our best knowledge, this study represents the first demonstration of a rigid, curved perovskite solar cell. The integration of perovskite photovoltaics onto curved surfaces will likely find direct applications in the aerospace and automotive sectors.
喷涂是一种工业上成熟的用于沉积薄膜的技术，它将高产量与涂覆非平面表面的能力相结合。在此，我们探索使用超声喷涂在刚性、非平面表面上制造钙钛矿太阳能电池（PSC），而不会出现溶液去湿和随后的“径流”问题。令人鼓舞的是，我们发现使用我们的工艺可以将PSC喷涂到与水平方向倾斜角度高达45°的玻璃基板上，此类器件的功率转换效率（高达18.3%）与喷涂到水平基板上的器件相当。在确定我们的工艺可用于在非水平表面上制造PSC之后，我们在凸面玻璃基板上制造器件，器件的最大功率转换效率为12.5%。据我们所知，这项研究首次展示了刚性、弯曲的钙钛矿太阳能电池。将钙钛矿光伏器件集成到弯曲表面上可能会在航空航天和汽车领域找到直接应用。
