| 초록 |
Although organic/inorganic hybrid perovskite solar cells(HPSCs) have great attention in recent year due to their high power conversion efficiency(PCE) over 25% and low fabrication cost, long-term stability still could not satisfy the requirements toward its industrialization.Therefore, interests in the all inorganic perovskites such as CsPbI3 based solar cells have been rapidly increased.However, the PCE of all inorganic PSC is lower than that of HPSCs and high efficiency devices are fabricated inside a nitrogen glove box.Because the CsPbI3 films are sensitive to moisture and water, it is a great challenge to develop suitable fabrication method in the ambient condition.In this work, we report on the high performance CsPbI3 PSCs consisting with Indium-Tin-Oxide(ITO)/NiOx/CsPbI3/Phenyl-C61-butyric acid methyl ester(PCBM)/ bathocuproin(BCP)/Ag under ambient conditions.We will discuss how the processing conditions such as precursor composition and pre- or post-treatments affect the quality of perovskite layer and performance of final devices. |
