Perovskite solar cell reaches 20.3% efficiency


For some, pervoskite research remains the holy grail of the solar industry, inciting deep intrigue with the promise of heightened efficiencies by adding just a thin extra layer to a solar cell. However, as with everything that seems to good to be true, there is one major hurdle, and in the case of perovskites it is stability and durability.

Researchers at Stanford and Oxford believe that they might have solved this problem, and created an even better product, by removing the silicon cell altogether. The scientists, reported in the most recent edition of Science, have created a solar cell that replaces the silicon cell with one made of perovskite crystal instead. So, instead of adding a thin layer of perovskites on top of a silicon cell to increase efficiency, which is where most of the prominent research is currently focused, this method uses purely perovskite crystal to construct the cell.

The perovskite crystal can be made with tin or with any other abundant elements, and is printed on glass, but can even be done on plastic. Two cells are then stacked next to each other, working in tandem to generate electricity from solar energy.

“Perovskite cells can be processed in a laboratory from common materials like lead, tin and bromine, then printed on glass at room temperature,” explained postpoctoral scholar at Stanford and co-lead author of the report Tom Leijtens.

The same efficiency for a lower cost


Related content

Elsewhere on pv magazine...

Leave a Reply

Please be mindful of our community standards.

Your email address will not be published. Required fields are marked *

By submitting this form you agree to pv magazine using your data for the purposes of publishing your comment.

Your personal data will only be disclosed or otherwise transmitted to third parties for the purposes of spam filtering or if this is necessary for technical maintenance of the website. Any other transfer to third parties will not take place unless this is justified on the basis of applicable data protection regulations or if pv magazine is legally obliged to do so.

You may revoke this consent at any time with effect for the future, in which case your personal data will be deleted immediately. Otherwise, your data will be deleted if pv magazine has processed your request or the purpose of data storage is fulfilled.

Further information on data privacy can be found in our Data Protection Policy.