Cu(II) and Ni(II) Phthalocyanine‐Based Hole‐Transporting Materials for Stable Perovskite Solar Cells with Efficiencies Reaching 20.0%
Jianxing Xia,
Jorge Labella,
Perihan Kübra Demircioglu
et al.
Abstract:Herein, Cu(II)Pcs and Ni(II)Pcs peripherally tetra‐functionalized with 5‐hexylthiophene (HT), 5‐hexyl‐2,2′‐bithiophene (HBT), and tertbutyl groups (TB) are readily synthesized and employed as hole‐transporting materials (HTMs) in mixed‐ion perovskite ([FAPbI3]0.85[MAPbBr3]0.15) solar cells, achieving power conversion efficiencies (PCEs) up to 20.0%. Remarkably, both the peripheral functionalization and the central metal are found to play a role in the performance. Through a combination of experimental and theo… Show more
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