研究目的
Developing a novel strategy to synthesize high-nuclearity Cu clusters for the fabrication of high-quality CuI films for optoelectronic applications.
研究成果
The study successfully synthesized the largest superatomic 2-electron alkynyl-protected Cu nanocluster, which can be dissolved in Et2O to form high-quality films. These films can be converted into high-quality CuI films at room temperature, demonstrating excellent performance as hole transport layers in perovskite solar cells with high efficiency and stability.
研究不足
The air-sensitivity of Cu(I)/Cu(0) clusters and the challenge in synthesizing high-nuclearity Cu clusters.
1：Experimental Design and Method Selection:
The synthesis involves the use of Cu powder and Ph2SiH2 as reducing agents to produce the Cu53 cluster.
2：Sample Selection and Data Sources:
The Cu53 cluster was characterized by single-crystal X-ray diffraction and ESI-MS.
3：List of Experimental Equipment and Materials:
Cu(CF3COO)2·H2O, Cu powder, tert-butylacetylene, Ph2SiH2, dichloromethane, methanol, and diethyl ether were used.
4：Experimental Procedures and Operational Workflow:
The synthesis involved dissolving Cu(CF3COO)2·H2O in a mixture of dichloromethane and methanol, adding Cu powder, then tert-butylacetylene, and finally Ph2SiH2 under vigorous stirring. The solution was centrifuged and stored to grow crystals.
5：Data Analysis Methods:
The structure was determined by single-crystal X-ray diffraction, and the composition was confirmed by ESI-MS.
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