November 1, 2011 — The University of Toronto’s organic light-emitting diode (OLED) on plastic reportedly boasts the highest efficiency for plastic-based OLEDs to date, comprable to the top-of-the-line glass-based OLEDs.
|Figure. Wang and Helander’s flexible OLED on plastic. SOURCE: University of Toronto.|
Materials Science & Engineering Professor Zheng-Hong Lu, the Canada Research Chair (Tier I) in Organic Optoelectronics, supervised the research with Ph.D. candidates Zhibin Wang and Michael G. Helander.
Wang and Helander were able to re-construct the high-refractive index property previously limited to heavy metal-doped glass by using a 50-100nm-thick layer of tantalum(V) oxide (Ta2O5), an advanced optical thin-film coating material.