研究目的
To improve the thermal stability and performance of perovskite solar cells by incorporating a solution-processible inorganic hole-transport layer (HTL) consisting of CuGaO2 nanoparticles and CuSCN.
研究成果
The incorporation of CuGaO2 nanoparticles with CuSCN as an HTL in perovskite solar cells significantly improves device performance and thermal stability, retaining ≈80% of initial efficiency after 400 h under 85 °C/85% RH condition. This approach presents a viable strategy for enhancing the commercial viability of perovskite solar cells.
研究不足
The study focuses on the thermal stability and performance improvement of perovskite solar cells with CuGaO2/CuSCN HTL but does not extensively explore the long-term stability under other stress conditions such as UV light or mechanical stress.
1：Experimental Design and Method Selection:
The study involves the synthesis of CuGaO2 nanoparticles, their surface modification with APTES, and the fabrication of perovskite solar cells with CuGaO2/CuSCN HTL.
2：Sample Selection and Data Sources:
CuGaO2 nanoparticles were synthesized hydrothermally and treated with APTES for better dispersion. Perovskite solar cells were fabricated using these nanoparticles.
3：List of Experimental Equipment and Materials:
Instruments used include XRD, FTIR, FESEM, AFM, UV–vis spectrophotometer, PL spectroscopy, and solar cell measurement system. Materials include Cu(NO3)2·
4：5H2O, Ga(NO3)3·xH2O, P123, APTES, and CuSCN. Experimental Procedures and Operational Workflow:
CuGaO2 nanoparticles were synthesized, treated with APTES, and spin-coated onto perovskite films. CuSCN was then spin-coated onto the CuGaO2 layer. The devices were characterized for performance and stability.
5：Data Analysis Methods:
Performance was evaluated using J–V curves, EQE measurements, and stability tests under high temperature and humidity.
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