Ordered macroporous CH3NH3PbI3 perovskite semitransparent film for high-performance solar cells
| Autor: | Wen-Guang Li, Hong-Yan Chen, Dai-Bin Kuang, Cheng-Yong Su, Bai-Xue Chen, Hua-Shang Rao |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Renewable Energy Sustainability and the Environment business.industry Nanotechnology 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Active layer Microsphere chemistry.chemical_compound Crystallinity Electrochemical impedance spectra chemistry Transmittance Transient photocurrent Optoelectronics General Materials Science Polystyrene 0210 nano-technology business Perovskite (structure) |
| Zdroj: | Journal of Materials Chemistry A. 4:15662-15669 |
| ISSN: | 2050-7496 2050-7488 |
| Popis: | In situ fabrication of an ordered macroporous perovskite semitransparent film on a FTO glass was successfully achieved via sacrificial polystyrene (PS) microsphere templates. The average visible transmittance of active layer from 20% to 45% can be tuned by simply changing the PS diameters and precursor concentrations. The ordered macroporous perovskite films show enhanced crystallinity and reduced recombination defects, superior to the island perovskite film. Transient photovoltage, transient photocurrent and electrochemical impedance spectra measurements proved the advanced charge transport and reduced recombination by importing macroporous structures. Herein, the optimized 400 nm MP CH3NH3PbI3 perovskite film with a high AL AVT of 36.5% achieved an impressive PCE of 11.7% compared to the island-like perovskite film (champion PCE = 5.6%), presenting a great potential for building integrated photovoltaic applications. |
| Databáze: | OpenAIRE |
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