Tuesday, August 9

Perovskite: the material to create unbreakable phones | Digital Trends Spanish

A team of scientists developed a new material that combines glass with nanocrystals that could help create much stronger cell phone screens.

According to the chemical engineers in charge, this innovative substance could even be used to make phone screens that would function as solar panels.

This technology relies on perovskites, which are nano-sized crystals that have a number of electrical properties, making them prime candidates for enhancing LEDs and touch screens.

Although perovskites have had some commercial successes, their physical properties have made it difficult for them to leave the laboratory.

“The stability of perovskites is the most difficult challenge that has prevented their commercialization,” explains Professor Lianzhou Wang, a materials scientist at the University of Queensland and co-author of a paper describing the research, published in Science.

Scientists explain that this material is supersensitive to almost everything: oxygen, water, gas, temperature and light.

The researchers have been able to overcome this sensitivity by finding a way to enclose the lead halide perovskites in glass.

“We have created a lot of very small, nano-sized pores inside the glass. That provides a very nice host material environment for perovskite, ”the authors explain.

“If we put those very small nanocrystals inside the pores, not only will they stabilize against the whole environment, it also makes perovskite 100 to 1,000 times more efficient.”

This material is also much more durable than normal glass. “Once you apply any pressure or mechanical force to it there is no way for it to relax, and that is what leads to the breaking of the chemical bonds.”

Finally, in addition to their potential applications on screens and LEDs, these glasses could be used to create higher quality X-ray images and more efficient solar panels.

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