Science news articles about 'quantum efficiency'

... and Sony today announced the achievement of 28.5% internal quantum efficiency (IQE) in deep blue fluorescent OLED devices, the world's highest level of luminous efficiency for this technology.

... and negative charge carriers into the organic layer is important to achieve high quantum efficiency, but the interface between the metallic coating and organic layer where the injection occurs is ...

... 1,482 nm), respectively. Because of their strong optical absorption in the range of laser diode pump sources and quantum efficiency of 50 percent, the new materials have promise for ...

... the widespread nanocrystal applications in use today. Nanocrystals show quite high photoluminescence quantum efficiency of up to 70% at room temperature. The missing 30% efficiency turns out to be an ...

... applications of nanocrystals in the fields requiring a continuous output of photons and high quantum efficiency may soon be realized due to discovery of non-blinking semiconductor nanocrystals. This ...

... For blue light, nitride diodes achieve external quantum efficiencies in excess of 65%, i. e., one photon ... . For red light, phosphor diodes achieve efficiencies of approx. 50%. However, so far no highly ...