Researchers seek to develop efficient quantum-dot LEDs

‘Our work paves the way to manufacture efficient and stable QD-based LEDs with really low cost, which is very important if we want to see widespread commercial use of these LEDs in large-area, full-colour flat-panel displays or as solid-state lighting sources to replace the existing incandescent and fluorescent lights,’ said Jiangeng Xue, the research leader and an associate professor of material science and engineering. ‘Manufacturing costs will be significantly reduced for these solution-processed devices, compared with the conventional way of making semiconductor LED devices.’

According to the university, a significant part of the research carried out by Xue’s team focused on improving existing organic LEDs (OLEDs). These semiconductors are multi-layered structures made up of paper-thin organic materials, such as polymer plastics, used to light up displays in an array of electronic devices.

OLEDs are also becoming more popular with manufacturers because they use less power and generate crisper, brighter images than those produced by conventional LCDs. Ultra-thin OLED panels are also used as replacements for traditional light bulbs and may be the next big thing in 3D imaging.