Kesteriet means the end of hydrogen in the world and one step in the direction of infinite energy. It even surprises more than the blue hydrogen that Spain was looking for. Photovoltaic (PV) devices are products that are able to transform sunlight into electrical energyA tool that extends all more sees the context of energy transition in which we are.
With increasing popularity, renewable engineers from all over the world work on identifying materials and procedures that can contribute to further reducing the costs of solar technologies, at the same time that their energy -conversion -efficiency is further increased (PCE).
In this context, it emphasizes an extremely promising material for the development of photovoltaic devices: the wide forbidden band Kesterite CU2ZNSNS4 (CZTS). It is a semiconductor who exposes a huge gap of energy And that is why the light can absorb more efficiently.
Kesterita, the infallible tool to achieve infinite energy
Contrary to what happens with silicon, which is currently the most important material used to produce photovoltaic technology, the CZTS It is not a toxic resource and consists of abundant components on earth. That is why it can be used for the development of more sustainable and affordable solar cells.
Despite its clear benefits, the Solar cells CZTS So far they have shown much lower efficiency than that of silicon, a maximum of 11%registered. This limited performance is largely in a procedure called the recombination of carriers, which implies the recombination of electrons and fotated openings before they can be recorded to produce electricity.
Under these circumstances, a group of researchers of the Nueva Wales del Sur University in Sydney They analyzed the possibility of placing the effects of recombination of carriers in solar cells of forbidden tire chest with the help of the technology “Hydrogen Appeal”.
An article published in Natural energyWhere they demonstrated that this technique could contribute to an improvement in the collection of carriers of these solar technologies, due to the redistribution of oxygen and sodium in the CZTS layers.
“Our work was inspired by the need to identify a sustainable, low -cost and environmental -respective material for the next generation of solar technologies,” he said Kaiwen Sunmain author of the article, for Tech Xplore.
Fulminates conventional solar panels: it is called Kesterite and leads us to infinite energy
‘CZTS He is a particularly promising candidate such as the upper cell in tandem solar architectures because of his forbidden adjustable bond, his stability and the use of abundant non -toxic elements on earth. However, an important challenge was to improve the efficiency of the collection of this material, “he appreciated.
The purpose of this report was to show that the profession of hydrogen could increase the efficiency of CZTS. Hydrogen Appeal is a technique that heats devices in an atmosphere loaded with hydrogen. To get them, the researchers attracted a simple and scalable system to recover.
“Hydrogen plays a crucial role in our method, by redistributing sodium in the material and passing on defects, especially close to the absorbent surface. This process significantly improves transport and collection of carriers, key factors to achieve high performance devices, “he said Sun.
And he added: “By improving these properties, our approach strengthens the position of CZTS As a practical and profitable higher cell material in soles in cells, able to mate efficiently with silicon for a wider use of the solar spectrum.
As part of the work, Sun And the rest of the specialists used a hydrogen proposed way proposed to a solar cell CZTS Without cadmium. In this way they discovered that this perspective promoted the solar cell considerably and achieved a new record efficiency of 11.4%.
Kesteriet is the end of hydrogen in the world and conventional solar panels, the step we needed to infinite energy. The same infinite energy that is about touching the holy grail of the United States.