研究目的
To achieve high power conversion efficiencies (PCEs) by synthesizing and exploring three porphyrin sensitizers to simultaneously enhance the photocurrent (Jsc) and photovoltage (Voc).
研究成果
The introduction of a BTD unit and bulky groups to the porphyrin dyes synergistically enhanced the photocurrent and photovoltage, leading to the highest PCE value of 7.34% for XW59. These results provide a new strategy for developing efficient dye-sensitized solar cells.
研究不足
The paper does not explicitly mention the limitations of the research.
1：Experimental Design and Method Selection:
Three porphyrin dyes (XW57-XW59) were synthesized by modifying XW4 with a benzothiadiazole (BTD) unit and bulky dihexyloxyphenyl groups to extend absorption wavelength and suppress dye aggregation.
2：Sample Selection and Data Sources:
UV–vis absorption spectra, cyclic voltammetry, and photovoltaic performances were tested using the cobalt-based electrolyte.
3：List of Experimental Equipment and Materials:
Not explicitly mentioned.
4：Experimental Procedures and Operational Workflow:
The dyes were characterized by NMR and mass spectra. Photovoltaic performances were tested under simulated AM
5：5 G full sunlight. Data Analysis Methods:
Density functional theory (DFT) and time-dependent density functional theory (TDDFT) calculations were employed to understand the electron distribution and absorption spectra.
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