Researchers from King Abdullah University of Science and Technology (KAUST) in Saudi Arabia, in collaboration with University of Toronto, the National University of Singapore and National Technical University of Athens, have designed monolithic tandem solar cell with power conversion efficiency of 27%, surpassing the previous best reported value of 22% in the same configuration.

The team explains that translating the high power conversion efficiencies of single-junction perovskite solar cells in their classic, non-inverted (n'i'p) architecture to efficient monolithic n'i'p perovskite/silicon tandem solar cells with high current densities has been a persistent challenge due to the lack of low-temperature processable, chemically-insoluble contact materials with appropriate polarity and sufficient optical transparency. To address this, they developed sputtered amorphous niobium oxide (a-NbOx) with ligand-bridged C60 as an efficient electron-selective contact, deposited on the textured-silicon bottom cell.

CubicPV is said to be in talks with the Indian government to participate in the performance linked incentives (PLI) scheme for solar equipment manufacturers. CubicPV was established as a result of a collaboration between Hunt Perovskite Technologies and 1366 Technologies.

CubicPV reportedly plans to invest $1.1 billion to set up 10 GW solar wafer and cells manufacturing capacity in India over the next five years. Frank Van Mierlo, CEO of CubicPV, said that the company is planning to bring its innovative products in the solar equipment category, such as wafers and semiconductors, to India.

The Department of Energy recently awarded $14 million to form a center, led by Sandia National Laboratories, to improve the understanding of perovskite-based photovoltaic technologies and determine the best tests to evaluate the new solar panels' lifetimes.

Perovskite-based photovoltaic technologies still have several challenges to overcome before they can compete against conventional solar panels. The Perovskite Photovoltaic Accelerator for Commercializing Technologies Center aims to offer solutions to these challenges.

A team of researchers from Hong Kong University and the Korea Electrotechnology Research Institute (KERI) have used 3D printing to create nanoscale display pixels made of perovskite.

3D printing of perovskite nanopixels using a nanopipette. Different chemical compositions enable the fabrication of red (R), green (G), and blue (B) triple pixels. Image via KERI

Last year, the same group of scientists used liquid inks and direct ink writing to fabricate display pixels capable of emitting light. Now, turning their attention to perovskites, the researchers believe they can achieve even greater brightness levels and higher resolution displays using a similar deposition-based 3D printing technique.

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