Scientists at the Indian Institute of Science Education and Research (IISER), Kolkata may have just found the perfect material for a smartphone screen. It is transparent and self-healing when cracked.
The researchers used a piezoelectric organic material that converts mechanical energy into electrical energy and vice versa to create needle-shaped crystals that are no more than 2 mm long and 0.2 mm wide. Due to the unique molecular structure of the material, at each break, the forces of gravity reconnect its parts, without the need for additional external factors, such as heat, which are necessary for most self-healing materials.
“Our self-healing material is 10 times harder than others and has an ordered internal crystal structure that is used in most electronic and optical applications,” explains the study’s lead author, Professor Chilla Malla Reddy of IISER.
Scientists say their design is ideal for smartphone screens. According to them, the new material is ten times harder than analogs.