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oe1(光电查) - 科学论文

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  • Hole‐Boosted Cu(Cr,M)O <sub/>2</sub> Nanocrystals for All‐Inorganic CsPbBr <sub/>3</sub> Perovskite Solar Cells

    摘要： The all-inorganic CsPbBr3 perovskite solar cell (PSC) is a promising solution to balance the high efficiency and poor stability of state-of-the-art organic–inorganic PSCs. Setting inorganic hole-transporting layers at the perovskite/electrode interface decreases charge carrier recombination without sacrificing superiority in air. Now, M-substituted, p-type inorganic Cu(Cr,M)O2 (M = Ba2+, Ca2+, or Ni2+) nanocrystals with enhanced hole-transporting characteristics by increasing interstitial oxygen effectively extract holes from perovskite. The all-inorganic CsPbBr3 PSC with a device FTO/c-TiO2/m-TiO2/CsPbBr3/Cu(Cr,M)O2/ structure carbon achieves an efficiency up to 10.18 % and it increases to 10.79 % by doping Sm3+ ions into perovskite halide, which is much higher than 7.39 % for the hole-free device. The unencapsulated Cu(Cr,Ba)O2-based PSC presents a remarkable stability in air in either 80 % humidity over 60 days or 80 8C conditions over 40 days or light illumination for 7 days.

    关键词： CsPbBr3,inorganic hole-transporting materials,all-inorganic perovskite solar cells,long-term stability,perovskites

    更新于2025-09-11 14:15:04

  • Hole-Boosted Cu(Cr,M)O <sub/>2</sub> Nanocrystals for All-Inorganic CsPbBr <sub/>3</sub> Perovskite Solar Cells

    摘要： The all-inorganic CsPbBr3 perovskite solar cell (PSC) is a promising solution to balance the high efficiency and poor stability of state-of-the-art organic–inorganic PSCs. Setting inorganic hole-transporting layers at the perovskite/electrode interface decreases charge carrier recombination without sacrificing superiority in air. Now, M-substituted, p-type inorganic Cu(Cr,M)O2 (M = Ba2+, Ca2+, or Ni2+) nanocrystals with enhanced hole-transporting characteristics by increasing interstitial oxygen effectively extract holes from perovskite. The all-inorganic CsPbBr3 PSC with a device FTO/c-TiO2/m-TiO2/CsPbBr3/Cu(Cr,M)O2/carbon structure achieves an efficiency up to 10.18 % and it increases to 10.79 % by doping Sm3+ ions into perovskite halide, which is much higher than 7.39 % for the hole-free device. The unencapsulated Cu(Cr,Ba)O2-based PSC presents a remarkable stability in air in either 80 % humidity over 60 days or 80 8C conditions over 40 days or light illumination for 7 days.

    关键词： CsPbBr3,inorganic hole-transporting materials,all-inorganic perovskite solar cells,long-term stability,perovskites

    更新于2025-09-11 14:15:04