研究目的
To synthesize a new and highly energetic indandione based D-π-A planar molecule for use as a donor material in bulk-heterojunction organic solar cells (BJH-OSCs) and to study its photophysical properties, optoelectrical characterization, and microscopic images.
研究成果
The synthesized H3T-ID molecule exhibited good thermal stability, improved solubility, and appropriate bandgap for use in BJH-OSCs. The fabricated devices showed a maximum PCE of ~4.05%, with good stability and reproducibility. The findings suggest that H3T-ID is a promising donor material for high-performance solution-processed BJH-OSCs.
研究不足
The study focuses on the synthesis and initial characterization of H3T-ID as a donor material for BJH-OSCs. Further optimization and scalability studies may be required for commercial applications.
1：Experimental Design and Method Selection
The synthesis of H3T-ID involved Friedel-craft cyclization, Knoevenagel condensation, and Suzuki cross coupling reaction. The photophysical properties, optoelectrical characterization, and microscopic images were studied to evaluate its performance as a donor material in BJH-OSCs.
2：Sample Selection and Data Sources
The samples were prepared using H3T-ID and PC61BM in varied compositions (1:1, 1:2, 1:3 w/w) in chlorobenzene for the fabrication of BHJ-OSCs.
3：List of Experimental Equipment and Materials
FTIR spectroscopy (FTIR-4100, JASCO), JEOL FT-NMR spectrophotometer, XEVO TQ-S spectrophotometer for mass spectra, TA instrument Q-50 for TGA, DSC (TA instrument DSC-2910), UV–Vis (V-670, JASCO), PL (FP-6500 fluorometer), electrochemical work station (WPG 100 potentiostat/Galvanostat, WonA Tech), AFM Nanoscope IV Digital Instrument.
4：Experimental Procedures and Operational Workflow
The fabrication of BHJ-OSCs involved cleaning ITO glass substrates, depositing cp-TiO2 layer, spin-coating the blend solution as photoactive layer, and thermally evaporating a top thin layer of gold.
5：Data Analysis Methods
The optical properties were investigated using UV–Vis and PL spectroscopy. The electrochemical properties were analyzed using cyclic voltammetry. The surface morphology was characterized by AFM.
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XEVO TQ-S
XEVO TQ-S
Mass spectra measurement
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TA instrument Q-50
Q-50
TA instrument
Thermogravimetric analysis
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DSC-2910
DSC-2910
TA instrument
Differential scanning calorimetry
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FP-6500
FP-6500
Photoluminescence spectroscopy
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WPG 100 potentiostat/Galvanostat
WPG 100
WonA Tech
Electrochemical cyclic voltammogram
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AFM Nanoscope IV Digital Instrument
Nanoscope IV
Digital Instrument
Atomic force microscopy
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