3-Picolinic acid (niacin) is utilized to coordinate with Pb2+, passivate the defects and control the perovskite crystal growth. The resulting device achieved a PCE close to 20%, along with improved… Click to show full abstract
3-Picolinic acid (niacin) is utilized to coordinate with Pb2+, passivate the defects and control the perovskite crystal growth. The resulting device achieved a PCE close to 20%, along with improved air and ultraviolet illumination stability.
               
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