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oe1(光电查) - 科学论文

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  • Ether-soluble Cu53 Nanoclusters as an Effective Precursor of High-quality CuI Films for Optoelectronic Applications

    摘要： An effective strategy is developed to synthesize high-nuclearity Cu clusters, [Cu53(RCOO)10(C≡CtBu)20Cl2H18]+ (Cu53), which is the largest Cu(I)/Cu(0) cluster reported to date. Cu powder and Ph2SiH2 are employed as the reducing agents in the synthesis. As revealed by single-crystal diffraction, Cu53 is arranged as a four-concentric-shell Cu3@Cu10Cl2@Cu20@Cu20 structure, possessing an atomic arrangement of concentric M12 icosahedral and M20 dodecahedral shells which popularly occurs in Au/Ag nanoclusters. Surprisingly, Cu53 can be dissolved in diethyl ether and spin coated to form uniform nanoclusters film on organo-lead halide perovskite. The cluster film can subsequently be converted into high-quality CuI film via in-situ iodination at room temperature. The as-fabricated CuI film proves to be an excellent hole-transport layer for fabricating highly stable CuI-based perovskite solar cells (PSCs) with 14.3% of efficiency.

    关键词： CuI film,Cu nanocluster,Alkynyl,Perovskite solar cells,Superatoms

    更新于2025-09-23 15:21:21

  • Ether-soluble Cu53 Nanoclusters as an Effective Precursor of High-quality CuI Films for Optoelectronic Applications

    摘要： An effective strategy is developed to synthesize high-nuclearity Cu clusters, [Cu53(RCOO)10(C≡CtBu)20Cl2H18]+ (Cu53), which is the largest Cu(I)/Cu(0) cluster reported to date. Cu powder and Ph2SiH2 are employed as the reducing agents in the synthesis. As revealed by single-crystal diffraction, Cu53 is arranged as a four-concentric-shell Cu3@Cu10Cl2@Cu20@Cu20 structure, possessing an atomic arrangement of concentric M12 icosahedral and M20 dodecahedral shells which popularly occurs in Au/Ag nanoclusters. Surprisingly, Cu53 can be dissolved in diethyl ether and spin coated to form uniform nanoclusters film on organo-lead halide perovskite. The cluster film can subsequently be converted into high-quality CuI film via in-situ iodination at room temperature. The as-fabricated CuI film proves to be an excellent hole-transport layer for fabricating highly stable CuI-based perovskite solar cells (PSCs) with 14.3% of efficiency.

    关键词： CuI film,Cu nanocluster,Alkynyl,Perovskite solar cells,Superatoms

    更新于2025-09-09 09:28:46