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Device modeling organolead halide perovskite solar cells with planar architecture based on inorganic hole transporting materials (HTMs) were performed. A thorough understanding of the role of the inorganic HTMs and the effect of band offset between HTM/absorber layers is indispensable for further improvement in power conversion efficiency (PCE). Here, we investigated the effect of band offset between...
We reported a fast and controllable two step deposition method for fabricating perovskite solar cells. Homogeneous perovskite CH3NH3PbI3 thin film layers were deposited by thermal evaporation of PbI2 and ultrasonic spray coating of CH3NH3I. The use of ultrasonic spray coating technique ensured a better control of the perovskite morphology, and a complete reaction for forming the CH3NH3PbI3 layer in...
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