Scientists led by Saudi Arabia’s KAUST have achieved a power conversion efficiency of 33.2% for a perovskite-silicon solar cell. KAUST Professor Stefaan De Wolf made the announcement on the university's LinkedIn account.
“Glad to announce we obtained a certified power conversion efficiency of 33.2% for our monolithic perovskite/silicon tandem solars cells developed at the KAUST Solar Center,” he said. “With this, perovskite/silicon tandems are now the most efficient two-junction solar cell technology under standard illumination conditions, even better than III-Vs.”
The European Solar Test Installation (ESTI) has certified the result.
“The 33.2% efficiency was just added to the NREL chart,” he told pv magazine. “The cells are indeed a further improvement on our previous devices.”
In January, KAUST announced a power conversion efficiency of 28.1% for a perovskite-silicon tandem solar cell based on textured silicon wafers. In August 2022, it claimed a 26.2% efficiency for a monolithic perovskite-silicon tandem photovoltaic device.
Popular content
In December 2021, KAUST researchers achieved a power conversion efficiency of 28.2% for a tandem solar cell with an area of around 1 cm2, based on an n-i-p perovskite stacked on top of a silicon heterojunction.
The same research group recently announced an inverted perovskite-silicon tandem solar cell with a 1 nm interlayer based on magnesium fluoride (MgFx) placed between the perovskite layer and the hole transport layer (HTL), in order to reduce voltage losses.
*The article was updated on April 13 to specify that the European Solar Test Installation (ESTI) has certified the result.
This content is protected by copyright and may not be reused. If you want to cooperate with us and would like to reuse some of our content, please contact: editors@pv-magazine.com.
All right! No doing 3 junctions and only getting 33% then! Get those agrivoltaics growing epiphytes to make into lenses and microblowers and stuff and keep growing that.
Now put silver between the Inter atomic layers of the perovskite and silicon right atop the MgF (x) nanometer thick layer. Since others have used silver twixt the perovskite layers and demonstrated boosted efficacy, this concept may also work on this structure.