The solar cells are made of silicon. Scientists use perovskite to reduce the cost of solar panels.
The Netherlands Energy Research Center (ECN) is an institution that develops technologies and conducts research to facilitate the transition to sustainable energy management.
They joined forces with the Solliance consortium to create a new double-sided solar cell, composed of silicon and perovskite.
At present, the silicon is the material par excellence for the manufacture of photovoltaic cells. It is used to be cheaper and stable.
Despite its advantages, scientists are looking to combine it with other materials to increase its effectiveness.
It is the fourth most abundant mineral in the world. They are crystals composed mainly of calcium titanate and have the property of absorbing light.
Scientists use this material to reduce the cost of manufacturing solar panels. Perovskite is more economical and significantly increases the efficiency of the solar cell.
In the experiments, they used a double-sided silicon unit, which has two active sides, a front and a back.
The proposed multi-junction device uses a four-terminal configuration, with separate circuits for the upper and lower cells that allow optimization of energy efficiency.
With the new design, Si-perovskite double-sided solar cells are able to convert 30.2% of light into electricity, but the ultimate goal is to achieve a value of 35% within 3 to 5 years.
The implementation of the perovskite film increases thesolar cell life. By having a thicker layer, it guarantees the possibility of mass production at low cost.
Scientists continue to work to ensure the scalability and reliability. In this way, mass production is possible, which could become a real revolution for solar energy.