研究目的
To develop cost-effective, high-performance hole-transporting materials (HTMs) for perovskite solar cells (PSCs) that achieve a balance between charge mobility and film-formation ability.
研究成果
The study successfully developed two 3D HTMs, CJ-03 and CJ-04, with CJ-03 showing superior performance in PSCs compared to spiro-OMeTAD. The unique molecular configuration of these HTMs facilitates a balance between charge mobility and film-formation ability, making them promising candidates for efficient and stable PSCs.
研究不足
The solubility of CJ-03 and CJ-04 in chlorobenzene is poor at 25 °C, which may add uncertainties to the film-forming processes and result in greater degree of PCE variability.
1:Experimental Design and Method Selection:
The study involved the synthesis of two HTMs, CJ-03 and CJ-04, using straightforward synthetic methods and facile purification techniques. The thermal stability, photophysical properties, electrochemical behaviors, and photovoltaic performances were evaluated.
2:Sample Selection and Data Sources:
The HTMs were tested in PSCs with a structure of FTO/compact TiO2/mesoporous TiO2/MAPbI3/HTMs/Au.
3:List of Experimental Equipment and Materials:
Instruments used include thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), UV–vis absorption spectroscopy, photoluminescence (PL) spectroscopy, cyclic voltammetry (CV), scanning electronic microscopy (SEM), atomic force microscopy (AFM), and space-charge-limited current (SCLC) method.
4:Experimental Procedures and Operational Workflow:
The HTMs were synthesized, characterized, and applied in PSCs. The devices were tested under AM 1.5 G irradiation (100 mW cm–2).
5:5 G irradiation (100 mW cm–2).
Data Analysis Methods:
5. Data Analysis Methods: The performance of PSCs was analyzed using J–V curves, IPCE spectra, and stability tests under various conditions.
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