Scalable Deposition of High-Efficiency Perovskite Solar Cells by Spray-Coating
Scalable Deposition of High-Efficiency Perovskite Solar Cells by Spray-Coating
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DOI：
10.1021/acsaem.8b00328
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发表时间：
2018-05
影响因子：
4.6
通讯作者：
Soňa Uličná;Benjia Dou;Dong Hoe Kim;K. Zhu;J. Walls;J. Bowers;M. V. Hest
中科院分区：
文献类型：
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作者：
Soňa Uličná;Benjia Dou;Dong Hoe Kim;K. Zhu;J. Walls;J. Bowers;M. V. Hest
喷射沉积是一种低成本、卷对卷兼容的技术，有可能取代旋涂沉积高效钙钛矿型太阳能电池。在这里，利用超声波喷涂系统在空气中制备了钙钛矿活性薄膜，并与同等的旋涂薄膜进行了比较。含氯钙钛矿油墨具有宽的加工窗口，再加上抗溶剂萃取，得到的钙钛矿膜的表面比旋涂的表面相对粗糙。24个器件的功率转换效率(PCE)为17.3%，平均为16.3%。尽管观察到了薄膜粗糙度和结构上的差异，但喷涂的钙钛矿太阳能电池的性能与在惰性气氛中加工的旋涂电池相当，显示了钙钛矿加工的多功能性。
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.