研究目的
Investigating the synthesis and photovoltaic performance of selenophene-conjugated magnesium tetraethynylporphyrin for organic solar cells.
研究成果
The study successfully synthesized selenophene-conjugated magnesium tetraethynylporphyrin with improved solubility and absorption properties. The optimized device achieved a PCE of 6.09%, demonstrating the potential of selenium substitution in enhancing photovoltaic performance. However, further optimization is needed to address morphological challenges.
研究不足
The study highlights the challenges in achieving high power conversion efficiency (PCE) with the synthesized molecules, particularly due to poor morphology of blended films and excessive intermolecular self-aggregation.
1：Experimental Design and Method Selection:
A catalytic system using Pd2(dba)3$(C6H6)/PPh3/CuI for Sonogashira coupling was employed to synthesize Mg-TEP-(Se-DPP)
2：Sample Selection and Data Sources:
Magnesium tetraethynylporphyrin and bromoselenophene-tethered diketopyrrolopyrroles (DPPs) were used as precursors.
3：List of Experimental Equipment and Materials:
Pd2(dba)3$(C6H6), PPh3, CuI, THF, triethylamine, silica gel column chromatography, preparative GPC.
4：Experimental Procedures and Operational Workflow:
The synthesis involved Sonogashira coupling, purification by silica gel column chromatography and preparative GPC, followed by characterization.
5：Data Analysis Methods:
The products were characterized by 1H NMR, MALDI-TOF mass spectrometry, UV-vis absorption spectroscopy, cyclic voltammetry, and differential pulse voltammetry.
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