Cracked mobile phone screens may have evolved into a factor of the former because of groundbreaking analysis carried out at the University of Queensland.
A worldwide workforce of researchers, led by UQ’s Dr Jingwei Hou, Professor Lianzhou Wang and Professor Vicki Chen, has unlocked the know-how to deliver next-generation composite glass for lighting LED lights and screens of smartphones, TVs and laptops.
The findings will enable the manufacture of glass screens that are not only unbreakable, but also offer crystal clear image quality.
Dr. Hou claims that this invention is a huge step forward in perovskite nanocrystal know-how as before, researchers were able to create this secret only in the arid environment of the laboratory.
Translucent composite glass. Credit score: Queensland College
“Emission supplies are made from nanocrystals, called lead-halogen perovskite,” he said. “They will harvest daylight and convert it into renewable electrical energy – enjoying a significant function in low cost and high efficiency new technology photovoltaic cells with many promising functions such as lighting shining.
“Sadly, these nanocrystals are extremely delicate to warmth, air and water – even the water vapor in our air can kill existing devices in just minutes.
“Our workforce of chemical engineers and materials scientists have developed a method of encapsulating or bonding nanocrystals in porous glass.
“This process is important for stabilizing the supply, improving its efficiency, and inhibiting toxic lead ions from leaching out of the supply.”
Performance benchmarking of composite glass in dry room service at the Australian Institute of Bioengineering and Biotechnology (AIBN) of the University of Queensland. Credit score: Queensland College
Dr. Hou says the know-how is scalable and opens the door to so many functions.
“Currently, quantum dot light-emitting diode or QLED displays are considered to be the highest performing devices for image display and efficiency,” he said.
“This analysis will allow us to advance this nanocrystal know-how by delivering stunning power and image quality.”
Professor Vicky Chen said it was an amazing improvement.
UQ analysis teams on this know-how (from left: Professor Lianzhou Wang, Dr. Rijia Lin, Dr. Peng Chen, Dr. Jingwei Hou, Professor Vicki Chen, Dr. Zhiliang Wang and Ms. Xuemei Li). Credit score: Queensland College
“Not that we can just make these nanocrystals more powerful, but we can tune their optoelectronic properties with unbelievably light emission efficiency and light-colored LEDs. white is extremely attractive,” said Professor Chen.
“This discovery opens up a whole new technology of nanocrystalline glass composites for energy conversion and catalysis.”
The findings have been published in the Journal of Science.
Reference: “Liquid phase sintering of lead-halogen perovskites and metal-organic framework glasses” by Jingwei Hou, Peng Chen, Atul Shukla, Andraž Krajnc, Tiesheng Wang, Xuemei Li, Rana Doasa, Luiz HG Tizei, Bun Chan, Duncan N. Johnstone, Rijia Lin, Tobias U. Schülli, Isaac Martens, Dominique Appadoo, Mark S’ Ari, Zhiliang Wang, Tong Wei, Shih-Chun Lo, Mingyuan Lu, Shichun Li, Ebinazar B. Namdas, Gregor Mali, Anthony Ok . Cheetham, Sean M. Collins, Vicki Chen, Lianzhou Wang and Thomas D. Bennett, Science October 29, 2021.
DOI: 10.1126 / science.abf4460
This analysis is a collaborative effort of UQ, Leeds College, University of Paris-Saclay and Cambridge College.
