John Labram of the OSU College of Engineering is the corresponding author on two recent papers on perovskite stability, in Communications Physics and the Journal of Physical Chemistry Letters, and also contributed to a paper published on July 3, 2020, in Science.
The study in Science, led by researchers at the University of Oxford, revealed that a molecular additive — a salt based on the organic compound piperidine — greatly improves the longevity of perovskite solar cells.
Credit: John Labram, Oregon State University.
“Because of their low cost, perovskite solar cells hold the potential to undercut fossil fuels and revolutionize the energy market,” Labram said.
“The findings help clarify similar results observed in solar cells and hold the key to improving the stability and commercial viability of perovskite solar cells.”.
Eight years of research later, perovskite cells can now operate at 25% efficiency — making them, at least in the lab, on par with commercial silicon cells.
and Europe requires a 25-year warranty,” Labram said.
Perovskites on the other hand are highly defect tolerant, Labram said.
“This means they could eventually be produced at a fraction of the cost of silicon, and hence undercut fossil fuels.
Lab tests on tandem cells have produced efficiencies of 28%, and efficiencies in the mid-30s seem realistic, Labram said.
“Tandem cells might allow solar panel producers to offer a performance beyond anything silicon alone might achieve,” he saidJ
“When it comes to energy generation, cost is the most important factor,” Labram saidK
In the long term, however, perovskite solar cells have the potential to be made at a fraction of the cost of silicon solar cells.
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