IOS researcher Professor Zheng-Hong Lu from the Department of Materials Science & Engineering has developed a simple method of using chlorine to drastically reduce the complexity of traditional OLED devices and dramatically improve their efficiency all at the same time. The research group was able to engineer a one-atom thick sheet of chlorine, an abundant halogen onto the surface of an existing industry-standard electrode material (indium tin oxide, ITO) found in today’s flat-panel displays. Using this chlorinated ITO, this team of advanced materials researchers found that they were able to achieve a record efficiency of 50% at 10,000 cd/m2 (a standard florescent light has a brightness of approximately 8,000 cd/m2), which is at least two times more efficient than the conventional OLED.