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Jun 06, 2014 02:29 PM EDT

Scientists Develop Shatterproof Screen That Could Save Smartphones


Polymer scientists at the University of Akron in Ohio have developed a transparent electrode that could change the face of smartphones by making them shatterproof.

In a recently published scientific paper, the science team demonstrated how a transparent layer of electrodes on a polymer surface could be extraordinarily tough and flexible, withstanding repeated scotch tape peeling and bending tests.

According to Yu Zhu, an assistant professor of polymer science, this device could revolutionize and replace conventional touchscreens. Currently used coatings made of indium tin oxide (ITO) are more brittle, most likely to shatter, and increasingly costly to manufacture.

Zhu said the new film provides the same degree of transparency as ITO, yet offers greater conductivity.

 "These two pronounced factors drive the need to substitute ITO with a cost-effective and flexible conductive transparent film," Zhu said in a statement

The novel film retains its shape and functionality after tests in which it has been bent 1,000 times. Due to its flexibility, the transparent electrode can be fabricated in economical, mass-quantity rolls.

"We expect this film to emerge on the market as a true ITO competitor," Zhu said. "The annoying problem of cracked smartphone screens may be solved once and for all with this flexible touchscreen.

The findings were recently published in the American Chemical Society's journal ACS Nano in the article titled "A Tough and High-Performance Transparent Electrode from a Scalable and Transfer-Free Method."

This research was conducted by Zhu, UA graduate students Tianda He and Aozhen Xia, and Darrell Reneker, distinguished professor of polymer science at the University of Akron.

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