Electroluminescence appears

Electroluminescence in Mylar Films

slowly or even stored at 95 °K for 8 or 16 hours 12. The ordering of this small part of the ice seems to be an almost spontaneous occurrence as the tempe­ rature is lowered to about 120 °K. A lowering of the activation energy for the movement of the defects in the neighbourhood of the dopant molecule could be the cause. It would mean that the area around a foreign molecule is quickly reorientat...

Ground State Electroluminescence.

Electroluminescence, the emission of light in the presence of an electric current, provides information on the allowed electronic transitions of a given system. It is commonly used to investigate the physics of strongly coupled light-matter systems, whose eigenfrequencies are split by the strong coupling with the photonic field of a cavity. Here we show that, together with the usual electrolumi...

Electroluminescence in Polymers

Conjugated polymers and copolymers have been known to have electroluminescent properties for a number of years. This study examines the electroluminescent properties of a particular segmented block copolymer. This copolymer uoresces quite well both in solution and as a thin lm, but a single layer organic LED made from it does not work well. I investigate the e ect of blending 1% PAN/CSA into th...

Electroluminescence of Giant Stretchability.

A new type of electroluminescent device achieves giant stretchability by integrating electronic and ionic components. The device uses phosphor powders as electroluminescent materials, and hydrogels as stretchable and transparent ionic conductors. Subject to cyclic voltage, the phosphor powders luminesce, but the ionic conductors do not electrolyze. The device produces constant luminance when st...

Third-generation organic electroluminescence materials†