研究目的
Investigating the effects of introducing interlayers and altering the electrode work function on the performance of fully vacuum-deposited perovskite solar cells.
研究成果
The study demonstrates that organic semiconductors like BCP and Liq can lead to high-performance perovskite solar cells with improved photovoltage and stability. However, the use of low work function metals, while beneficial for photovoltage, negatively impacts device stability. Future research should focus on integrating low work function surfaces without compromising stability.
研究不足
The use of low work function metals like Ba enhances photovoltage but compromises device stability. The study is limited to vacuum-deposited devices and does not explore solution-processed alternatives.
1：Experimental Design and Method Selection:
The study involved the fabrication of p–i–n perovskite solar cells with various interlayers and electrodes to evaluate their impact on device performance. All layers were prepared by vacuum sublimation.
2：Sample Selection and Data Sources:
The devices were fabricated on ITO-coated glass substrates, with layers including MoO3, TaTm, MAPI, C60, and various interlayers (BCP, Liq, Ba) and electrodes (Ag, Ba).
3：List of Experimental Equipment and Materials:
Equipment included vacuum chambers, quartz crystal microbalance sensors, and a Keithley 2612A SourceMeter for J–V measurements. Materials included MoO3, TaTm, MAPI, C60, BCP, Liq, Ba, and Ag.
4：Experimental Procedures and Operational Workflow:
Layers were sequentially deposited by vacuum sublimation, with thickness and deposition rates controlled. Devices were characterized under AM 1.5G simulated sun illumination.
5：5G simulated sun illumination.
Data Analysis Methods:
5. Data Analysis Methods: J–V curves were analyzed to determine photovoltaic parameters. Photoluminescence measurements were conducted to assess recombination dynamics.
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