Abstract
In most research, fabrication of high performance perovskite solar cells (PSCs) has been carried out in a well-controlled environment (glove boxes), which may result in high cost for eventual manufacturing. Therefore, fabrication of efficient perovskite solar cell in ambient air is of great interest. We fabricated CH3NH3PbI3(MAPbI3) solar cells in ambient air without control of relative humidity (~20-50%RH) using the antisolvent method. The effect of both the antisolvent and the annealing process on the solar cell performance has been investigated. Solar cells with power conversion efficiency of over 15% and negligible hysteresis were obtained, which are close to the performance of solar cells fabricated at nitrogen environment in a glove box. It may pave the way for fabrication of highperformance PSCs in ambient air.
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