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An Old Rock Could Lead to NextGeneration Solar Cells. Perovskite technology could disrupt the world's solar market, currently dominated by China The high speed rolltoroll printing
Research programme on perovskitecrystalline silicon hybrid tandem photovoltaics
However, there are still many challenges need to be overcome, such as how to prepare high quality and largearea perovskite thin films with high uniformity and reproducibility, how to improve the reproducibility of single cells and how to design the interconnection of single cells to
Han and coworkers developed a screen printing method to make perovskite solar cells and achieved a PCE of 15.6% and high fabrication speed . we first employed NH 4 Cl as an additive to make high quality perovskite film with an ~ 80% fill factor without using any quenching steps or a mesoporous TiO 2 layer
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This method does not require sophisticated environmental conditions and complicated equipment. Brush painting is one of the simplest methods for manufacturing perovskite solar cells. It is a highspeed fabrication technique with the low material loss. Tait JG et al (2016) Rapid composition screening for perovskite photovoltaics via
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Realizing the commercialization of highperformance and robust perovskite solar cells urgently requires the development of economically scalable processing techniques. Here we report a highthroughput ultrasonic spraycoating (USC) process capable of fabricating perovskite filmbased solar cells on glass substrates with a power conversion efficiency (PCE) as high
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Preparing perovskite films directly in air with high humidity results in low device performance due to perovskite's intrinsic sensitivity to moisture , . The fabrication of efficient perovskite solar cells in air generally needs humidity control or the assistance of antisolvent  ,  ,  .
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A recent paper published in NANO showed the gassolid reaction method provides a full coverage of the perovskite film and avoids damage from the organic solvent, which is beneficial for light capture and electrons transportation, resulting in a faster response time and stability for perovskite photodetectors.
Infrared LEDs can be harnessed for improved nightvision technology, to better biomedical imaging, to highspeed telecommunications. Read more Engineered hybrid crystal opens new frontiers for high
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We found that a concentration of 20 wt% and a final rotation speed of 5000 rpm were the optimized parameters, being appropriate also for the CH 3 NH 3 PbBr 3 perovskite. This method assures that perovskite nanocrystals are exclusively grown within the inorganic scaffold.
For the first time, we report largearea (16 cm 2) independently certified efficient single perovskite solar cells (PSCs) by overcoming two challenges associated with largearea perovskite solar cells.The first challenge of realizing a homogeneous and densely packed perovskite film over a large area is overcome by using an antisolvent spraying process.
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