Factors influencing the performance of paintable carbon-based perovskite solar cells fabricated in ambient air

Xu Wei-Kang, Chen Feng-Xiang^†, Cao Gong-Hui, Wang Jia-Qi, Wang Li-Sheng

(color online) XRD patterns of perovskite films prepared by (a) non-antisolvent extraction treatment, (b) CB extraction treatment with an extraction time of 25 s, (c) TL extraction treatment with an extraction time of 25 s, and (d) DE extraction treatment with an extraction time of 5 s.