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Architecture, process, and materials for efficient perovskite solar cells

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Abstract

Today, crystalline silicon dominates the solar panel industry but remains relatively expensive to manufacture. If devices could be fabricated from cheap materials by a simple solution process without annealing at high temperature, their costs could be considerably reduced through mass production. Of the many materials and methodologies aimed at producing low-cost, efficient solar cells, organolead trihalide perovskites have been introduced as new players for solution-processable light harvesters, resulting in very high–efficiency, and cost-effective solar cells. In this presentation, I will talk about several approaches for fabricating efficient perovskite solar cells. A process and chemical engineering with tuned-architectures induced the formation of well-crystallized perovskite materials with the extremely uniform and dense perovskite layers, and remarkably improved the performance of the cells with a certified power conversion efficiency (PCE) of 20.1% under air-mass 1.5 global (AM 1.5G) illumination of 100 mW cm–2 intensity. These results will lead to more efficient and cost-effective inorganic-organic hybrid heterojunction solar cells in the future.

© 2015 Optical Society of America

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