CN-VOLET: NanoTubes That Will Make Displays Bright

Are you a techno geek or a perfectionist? And you want something even better picture quality than LCDs? Well it’s CN-VOLET you are looking for.

When Junji Kido, a professor at Yamagata University invented the first white OLED, did the world have the organic taste of LEDs. To be simple, Ever thought, how the low powered small displays for mobile digital products like cellular phones are produced? The answer is about four years old. It is the Organic Light Emitting Diodes (OLEDs) technology. The technology may be lot older, but the commercial use as far as I am aware has only been since four years.

#-Link-Snipped-#Andrew Rinzler presented a paper which was published in April 29 issue of journal Science has brought CN-VOLET to the world’s notice. Rinzler and his team, from University of Florida have designed a peculiar type of transistor by combining above mentioned OLEDs with carbon nanotubes to form CN-VOLET.

He and his team have designed a horizontal transistor which is an inversion of the standard transistor. The other researchers have come up with vertical designed. But Rinzler claims that his design is about eight times more efficient than the vertical ones.

The design which they made had a layer of Indium tin oxide, an organic polymer and aluminum oxide are deposited on a glass substrate. The layer above it consists of two parts. One contains a source contact and the other contains a light emitting element and a transistor channel. A ‘dilute network’ connects the contact, organic semiconductor and light emitter. This ‘dilute network’ is made of carbon nanotubes. In the last layer, a drain is placed on OLED.

Rinzler said, “The light emitter can occupy more of the pixel area, giving the same light output at a lower current density through the light emitter. Since high current density degrades the lifetime of the light emitter, the change should make these devices last longer.”

Michele Muccini, head of a research unit at the Institute for Nanostructured Materials, in Italy says, "It is in principle a promising approach for high-resolution large-area displays," he says. He also added that the design seems to be effective at "lowering the parasitic power consumption and…increasing the pixel illumination ratio."

So the main question which lies is that “what advantage does this technology has over prevalent practices?” The advantages are quite notable. Well, if you compare this transistor based design with other designs then you will find that it is efficient even at low voltages and it can also drive high current OLETS.  Also the OLETs are not restricted to small handheld devices like cell phones.

So isn’t it amazing to have a better quality than LCDs? Truly awesome it is, because now we will also be able to use the OLEDs in television thanks to CN-VOLETs. All would be very curious to see this getting implemented on a commercial basis soon.

News: #-Link-Snipped-#