研究目的
To investigate the use and processing of nanoparticle SnO2 films as electron transport layers in perovskite solar cells, and develop scalable deposition methods for ultrasonic spray-coating and slot-die coating.
研究成果
The research demonstrates the feasibility of using scalable deposition methods for np-SnO2 films in perovskite solar cells, achieving high device efficiencies. It underscores the importance of interface management and provides insights into the processing requirements for large area deposition of nanoparticle metal oxides, paving the way for their commercial application.
研究不足
The study highlights the need for careful interface management to minimize nonradiative losses and the challenges in scaling up deposition methods for commercial applications. The effects of post-processing treatments on device performance and the compatibility of these methods with high-throughput processing are also discussed.
1：Experimental Design and Method Selection:
Utilized nanoparticle SnO2 films as electron transport layers in perovskite solar cells, exploring scalable deposition methods like ultrasonic spray-coating and slot-die coating.
2：Sample Selection and Data Sources:
Perovskite solar cells fabricated with np-SnO2 ETL, perovskite absorbing layer, doped spiro-OMeTAD hole transport layer, and Au top contact.
3：List of Experimental Equipment and Materials:
Ultrasonic spray coater, slot-die coater, thermal annealing equipment, UV ozone and O2 plasma treatment systems.
4：Experimental Procedures and Operational Workflow:
Deposition of np-SnO2 films via spin-coating, spray-coating, and slot-die coating; post-processing treatments including thermal annealing, UV ozone, and O2 plasma; characterization of film morphology and device performance.
5：Data Analysis Methods:
Structural and spectroscopic techniques to characterize the np-SnO2/perovskite interface, including SEM, AFM, GISAXS, XPS, UPS, and device performance metrics.
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