研究目的
To construct highly efficient and foldable perovskite solar cells on cellophane paper for wearable and portable applications.
研究成果
The study successfully demonstrated the construction of highly efficient and foldable perovskite solar cells on cellophane paper, achieving a record PCE of 13.19%. The PSCs exhibited excellent stability under single folding and reasonable stability under dual folding, making them promising for portable and wearable electronic applications. The research also provided insights into the degradation mechanisms under different folding conditions.
研究不足
The study highlights the degradation of PSCs under dual folding conditions, which is faster than under single folding, due to higher strain and larger crease area. The practical application may be limited by the durability under multiple folding cycles.
1：Experimental Design and Method Selection:
The study involved the construction of solar cells on cellophane paper using oxide/ultrathin Ag/oxide (OMO) as electrodes and perovskite as absorbers. The methodology included the fabrication of PSCs with a specific structure and the investigation of their performance under various folding conditions.
2：Sample Selection and Data Sources:
The 25 μm thick ultrathin cellophane paper was used as the substrate. The performance of the PSCs was evaluated under standard AM1.5 illumination.
3：5 illumination.
List of Experimental Equipment and Materials:
3. List of Experimental Equipment and Materials: Equipment included magnetron sputtering for deposition, spectroscopic ellipsometry for thickness measurement, SEM for surface morphology characterization, and UV/visible/NIR spectrophotometer for transmittance spectra. Materials included TiO2, Ag, C60 pyrrolidine tris-acid (CPTA), CH3NH3PbI3, Spiro-OMeTAD, and Au.
4：Experimental Procedures and Operational Workflow:
The fabrication process involved depositing OMO electrodes on cellophane, spin-coating CPTA and perovskite layers, and depositing Au electrodes. The devices were then subjected to folding tests to evaluate their stability.
5：Data Analysis Methods:
The performance of the PSCs was analyzed using J-V curves, EQE spectra, and SEM images to understand the degradation mechanisms under folding.
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