30 years without replacement: the first perovskite solar cells are tested in practice

(ORDO NEWS) — Scientists have noticed the advantages of perovskite for a long time and immediately began to work with a new mineral, using it to build solar panels.

Until now, the main problem of these products has been a short service life, but scientists have managed to solve this problem.

Although silicon has been the main material for solar panels for decades, perovskite has been actively gaining ground over the past 15 years.

Perovsk is as efficient as silicon, but allows for cheaper, lighter and more flexible panels. However, perovskites are not very stable and rather short-lived when used in real conditions.

Important experiment

Researchers from Princeton University in the US have finally tested in the laboratory a sample that can work without replacement for up to 30 years in real conditions.

In the new study, the scientists added a special intermediate layer, literally a few atoms thick, between a charge-carrying light-absorbing feather-cotton layer to stabilize the structure.

The intermediate layer is made from carbon disulfide, lead, iodine and chlorine and is used to protect the structure from rapid burnout.

While similar solutions have been proposed before by various teams, the new formulation has the potential to keep solar cells operational for more than 30 years – the first solution in its class to cross the threshold of 20 years.

30 years without replacement the first perovskite solar cells are tested in practice 1
A batch of primary elements in an accelerated aging chamber

When will these batteries be on the market?

So far, only experiments have been discussed. The researchers used an artificial aging chamber to evaluate the “survivability” of the panels, in which the elements were exposed to sunlight and temperatures ranging from 35 to 110 °C.

After extrapolating the data, the team concluded that under standard climatic conditions, the new solution can work for 30 years.

According to scientists, the artificial aging chamber used in the experiment will make it possible to test the stability of not only perovskim, but also any other elements.


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