研究目的
To investigate the use of phenylhydrazinium iodide (PHAI) as an additive in MAPbI3 perovskite for defect minimization and enhancement of the charge carrier dynamics of inverted hybrid perovskite solar cells (HPSCs).
研究成果
The incorporation of PHAI as an additive in MAPbI3 perovskite significantly improves the photovoltaic performance of HPSCs by minimizing defects, enhancing charge carrier dynamics, and improving stability. The treated devices showed a ≈20% improvement in power conversion efficiency compared to pristine devices.
研究不足
The study focuses on the effects of PHAI on MAPbI3 perovskite films and devices, and may not be directly applicable to other perovskite compositions or device architectures. The long-term stability under operational conditions was not extensively studied.
1：Experimental Design and Method Selection:
The study involved the synthesis of PHAI and its incorporation into MAPbI3 perovskite precursor solution to study its effects on defect passivation and charge carrier dynamics.
2：Sample Selection and Data Sources:
Perovskite films with and without PHAI additive were prepared and characterized.
3：List of Experimental Equipment and Materials:
Materials included PHAI, MAPbI3, and various solvents. Equipment included Raman spectrometer, FTIR, SEM, AFM, XRD, EIS, TPC, TPV, UV–Vis spectroscopy, and J–V measurement systems.
4：Experimental Procedures and Operational Workflow:
Perovskite films were prepared via spin-coating, followed by characterization using the aforementioned techniques to assess morphology, crystallinity, and optoelectronic properties.
5：Data Analysis Methods:
Data from various characterizations were analyzed to evaluate the impact of PHAI on perovskite film properties and device performance.
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