Scholarlink

<p>Monolithic perovskite/Cu(In,Ga)Se<sub>2</sub> tandem solar cells can surpass the efficiency limits of single-junction photovoltaics but are currently limited by interfacial optical and electronic losses. Here we demonstrate a dual-interface carrier transport engineering strategy that combines a nanoparticle-assisted NiO<sub><i>X</i></sub> intermediate recombination layer with bimolecular co-passivation at the perovskite/C<sub>60</sub> interface, enabling conformal coverage on textured Cu(In,Ga)Se<sub>2</sub> surfaces, suppressed defects, optimized band alignment and enhanced carrier extraction across both interfaces. Champion monolithic tandem cells achieve power conversion efficiencies of 31.09% (certified 30.57%, steady-state 30.32%) for small-area devices (0.0539 cm<sup>2</sup>) and 29.44% (certified 28.85%) for larger-area devices (1.0298 cm<sup>2</sup>). The optimized devices retain ~94% of their initial efficiency after &gt;3,500 h of storage, ~91% after &gt;750 h of continuous operation, and ~90% after 960 h of heating at 70 °C, demonstrating simultaneously enhanced efficiency and stability.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Improving interface-mediated carrier transport for efficient perovskite/Cu(In,Ga)Se2 tandem solar cells

  • 期刊论文

  • 发表日期：

    2026年8月5日

查看全文
  • Li Zeng,
  • Wuji Wang,
  • Liting Tang,
  • Xing Gao,
  • Haofei Xia,
  • Xiaomin Wang,
  • Zekai Luo,
  • Yuqi Zhao,
  • Yan Gao,
  • Zhuo Xue,
  • Wenbo Li,
  • Yue Sun,
  • Jiangtong Zhao,
  • Jiajv Wang,
  • Yong Liu,
  • Weiqing Zhou,
  • Rui Sun,
  • Jie Min,
  • Guilin Chen,
  • Ti Wang,
  • Sheng Wang,
  • Shengjun Yuan,
  • Xudong Xiao,
  • Jianmin Li

摘要

Monolithic perovskite/Cu(In,Ga)Se2 tandem solar cells can surpass the efficiency limits of single-junction photovoltaics but are currently limited by interfacial optical and electronic losses. Here we demonstrate a dual-interface carrier transport engineering strategy that combines a nanoparticle-assisted NiOX intermediate recombination layer with bimolecular co-passivation at the perovskite/C60 interface, enabling conformal coverage on textured Cu(In,Ga)Se2 surfaces, suppressed defects, optimized band alignment and enhanced carrier extraction across both interfaces. Champion monolithic tandem cells achieve power conversion efficiencies of 31.09% (certified 30.57%, steady-state 30.32%) for small-area devices (0.0539 cm2) and 29.44% (certified 28.85%) for larger-area devices (1.0298 cm2). The optimized devices retain ~94% of their initial efficiency after >3,500 h of storage, ~91% after >750 h of continuous operation, and ~90% after 960 h of heating at 70 °C, demonstrating simultaneously enhanced efficiency and stability.