New perovskite material may enable 38.7% efficient silicon\perovskite tandem cells

Scientists from Japan’s Gifu University and the Tokyo Institute of Technology have identified a chalcogenide perovskite material with light absorption attributes strong enough to offer the potential for a theoretical maximum conversion efficiency of 38.7% in a silicon perovskite tandem solar cell.

The material – BaZrTiS3 – has a light absorption coefficient exceeding 105cm-1, the highest of all solar cell materials including chalcogenide perovskites such as SrZrS3, BaHfS3 and SrHfS3, the scientists claim.

New paper announces consensus on the procedures for the testing of perovskite cells

A new paper claims that scientists have reached a consensus on the procedures for the testing of perovskite cells, which they say will lead to better reproducibility and comparability of data produced by different laboratories, and ultimately a better understanding of the degradation pathways affecting perovskite solar cells, and the most effective ways to mitigate them.

Perovskites still have a way to go to convince the PV industry of their potential for long term durability. The class of materials’ sensitivity to moisture and other conditions they would be sure to encounter in the field has continued to be a stumbling block.

HZB team brings the efficiency of perovskite silicon tandem solar cells to 29.15%

The groups of Steve Albrecht and Bernd Stannowski at HZB have reached a record efficiency of 29.15% of its tandem solar cell made of perovskite and silicon.

HZB team sets new efficiency record for perovskite-silicon cells imageThe illustration shows the structure of the tandem solar cell: between the thin perovskite layer (black) and the silicon layer (blue) are functional intermediate layers. © Eike Köhnen/HZB

This value has been officially certified by the CalLab of the Fraunhofer Institute for Solar Energy Systems (ISE) and means that surpassing the 30% efficiency mark is now within reach.

Berkeley team creates perovskite blue LED and illustrates both limitations and potential of perovskite semiconductors

University of California, Berkeley, scientists have created a blue light-emitting diode (LED) from halide perovskites, overcoming a major barrier to using these cheap, easy-to-make materials in electronic devices.

In the process, however, the researchers discovered a fundamental property of halide perovskites that may prove a barrier to their widespread use as solar cells and transistors. Alternatively, this unique property may open up a whole new world for perovskites far beyond that of today's standard semiconductors.

Panasonic announces 16.01% efficiency for lightweight perovskite solar module

Japanese electronics giant Panasonic has reported the production of a lightweight 30cmX30cm perovskite solar module with an efficiency of 16.01%. The result was achieved in a research project by Japan’s New Energy and Industrial Technology Development Organization.

The device has an area of 802cm² and thickness of 2mm. The manufacturer claims it improved module performance through an inkjet coating method and a reduction in weight by using thin glass substrates.