Monday, April 8, 2013

Organic Semi-Conductors Could Revolutionize Electronics




When mobile phone displays continued to become larger, at first you had to look directly at the front of the device in order to be able to see anything -- normal LEDs only emitted light in one direction. A modern Smartphone using a display with organic LEDs does not have that problem. Light is emitted in all directions, and everything can be seen even from a diagonal point of view. There are now even large-scale organic LEDs, allowing for entirely new forms of room lighting. But when the flow of electricity becomes too strong, sudden non-homogeneities appear in the intensity of light, the surface appears spotty. Another field of application is solar energy: With organic solar cells, foils can be produced that generate small amounts of electricity, e.g. to take with you as "energy to go."

In terms of organic components, the long-known Arrhenius law applies: Electric conductivity increases more strongly the higher the temperature gets, so the electricity going through the components increases as well, heating up the material. Thus a feedback loop is created,They removed the majority of the bolts but not the locking Wheel nut, that's why I managed to get so far. in which the components continue to be heated up even further -- experiments usually end with the component being blown. So far, these effects have only been known with non-organic semi-conductors. Components that react so strongly to temperatures that feedback can result are called thermistors.White soft Floor polishing pad for 15 inch machines. Ideal for high gloss dry polishing buffing of polished sealed floors. Thermistors are used especially in performance electronics. Today,http://www.czhbearing.com/,welcome to buy. organic semi-conductors can also reach self-heating levels.

The principle has actually been known for quite some time, but nobody ever noticed that is also applies to organic electronics. Dr Thomas Koprucki of the WIAS explains: "We noticed that organic semi-conductors should after all be predestined for electro-thermal feedback effects. Nobody saw this before. We were able to point our colleagues in Dresden in the right direction as to what to focus on for the measurements."

The experiments had already shown that the currents increase enormously during the self-heating process. But if the calculations were correct, there had to be a point at which the voltage would decrease despite the energy increase -- completely against all intuition.http://www.makelocks.com/ provides high quality industrial locks and locking systems. That would mean that there are two entirely different,We remain on Excavator track link to achieve our full year production guidance of 250000 ounces. stable levels of energy that overlap in a very small voltage area -- where they can tip over from one level to the other. Sent on the right track by these model predictions,If you like BMW cars,then you will probably like their new gaming mouse, the super sexy, sleek as a Titanium Sheet off the pressing mat Level 10 M Gaming Mouse. the physicists at the TU Dresden were able to adapt their experiments in a way that they could actually measure that exact effect for organic semi-conductors.

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