perovskite solar cells tagged posts

Novel Material Increases Efficiency and Stability of Perovskite Solar cells

Novel material increases efficiency and stability of perovskite solar cells
The method developed at UNESP involves the use of a class of materials called MXenes. Credit: CDMF

In an article published in the Journal of Materials Chemistry C, Brazilian researchers describe a strategy to enhance the efficiency and stability of solar cells made of perovskite, a semiconductor material produced in the laboratory. The results of the project could be highly positive for the future of the solar power sector.

Developed by researchers at São Paulo State University (UNESP) in Bauru, Brazil, the method involves the use of a class of materials known as MXenes, a family of two-dimensional materials with a graphene-like structure combining transition metals, carbon and/or nitrogen, and surface functional groups such as fluoride, oxygen or hydroxyl...

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Inverted Perovskite Solar Cell Breaks 25% Efficiency Record

Inverted perovskite solar cell breaks 25% efficiency record
Northwestern University researchers have raised the standards again for perovskite solar cells with a new development that helped the emerging technology hit new records for efficiency. Credit: Sargent Lab/Northwestern University

Northwestern University researchers have raised the standards again for perovskite solar cells with a new development that helped the emerging technology hit new records for efficiency.

The findings, published today (Nov. 17) in the journal Science, describe a dual-molecule solution to overcoming losses in efficiency as sunlight is converted to energy...

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Researchers fabricate Phase-Heterojunction All-Inorganic Perovskite Solar Cells with an Efficiency Above 21.5%

Phase-heterojunction all-inorganic perovskite solar cells with an efficiency above 21.5%
Schematic representation of fabrication of phase-heterojunction perovskite solar cells. Credit: Mali et al.

Solar technologies have become increasingly advanced over the years, with the discovery of new photovoltaic materials and designs. While solar cells based on a mixture of organic and inorganic halide perovskite materials have been the topic of numerous research studies and achieved promising performances, these cells are often difficult to fabricate on a large-scale.

Researchers at Chonnam University in South Korea recently introduced an alternative solar cell design fully based on inorganic perovskites. Their solar cells, introduced in Nature Energy, could be easier to fabricate on a large-scale, while nonetheless achieving promising power conversion efficiencies (PCEs).

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Cheaper Solar Cells could be on the way thanks to New Materials

The solar cell with the ferrocene layer highlighted

New solar cell devices that are cheaper and easier to make could soon make their way to market thanks to materials made at Imperial College London.

Traditional solar cells are made from silicon, which has good efficiency and stability, but is relatively expensive to make and can only be manufactured in stiff panels.

Perovskite solar cells offer an intriguing alternative; they can be printed from inks, making them low cost, high efficiency, thin, lightweight and flexible. However, they have trailed behind silicon solar cells in efficiency and, importantly, stability, breaking down under normal environmental conditions.

New metal-containing materials called ferrocenes could help with these problems...

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