William John Potscavage Jr.

Kyushu University

Autonomous Drone Boat Test Ends in Disaster

August 20, 2025

United Airlines Flight Training Center on 35th Ave in Denver, Colorado, USA.

United Airlines Ventures Invests in Aerospace Startup Astro Mechanica

August 20, 2025

The REGENT Viceroy Seaglider, a winged passenger ferry, glides over the surface of Narragansett Bay on a test run, Wednesday, Aug. 6, 2025, off the coast of North Kingstown, R.I.

Winged Ferry That Glides Like a Pelican Tested for Coastal Transportation

August 20, 2025

GM's Futuristic Corvette Opens Like a Fighter Jet

August 19, 2025

Using the OLED structure in this schematic, researchers were able to delay the degradation in brightness of an OLED with the TADF emitter 4CzIPN by eight to sixteen times. First, the hole blocking layer was sandwiched between layers of Liq with thicknesses of 3 nm on the emitter side and 2 nm on the electron transport side. This newly developed modification enhanced the lifetime by eight times (red line). The lifetime was further increased by a factor of sixteen overall (green line) by also doping the emitter and host layer with an electron transport material and doping the electron transport layer with Liq, two enhancements previously reported in the literature for other OLEDs. The devices were operated at a constant current with an initial brightness of 1,000 cd/m2, and the lifetime plots in this figure were smoothed for clarity. These improvements bring highly efficient and low-cost displays and lighting with TADF materials one step closer to reality.

Tiny Tweak Becomes OLED Breakthrough

The easy modifications can also increase OLED lifetime in smartphone displays and large-screen televisions.

March 1, 2016