Breakthrough In Transistor Market: Newly Developed Organic Active Adaptation Transistor Potentially Restore The Eyesight Of Patients Suffering From Eye Damage

• Analysis
• 05-August-2021

The human eye has the ability to indulge in a sort of on-the-fly adaptation. For instance, when one moves from a dark theatre, his/her eye would change in accordance with the light present outside automatically. Further, the concept is not simple, with only the lens changing size by either contracting or opening the lens and thus changing the amount of light let in. Instead, the change also takes place at the very end of the eye, wherein different ions are transported.
Now, a research team has tried to incorporate a similar technique and has developed an OAAT (Organic Active Adaptation Transistor). The breakthrough could help advance the Transistors Market as the new research overcomes the hurdle of charging transport and investigates the possibility of using OAAT for benefiting people with lost eyesight.

In the study, the team’s objective was to imitate the process undertaken by the eye through the creation of a photo adaptive device. According to the people involved, they would like to take on their newly developed device to a height where they are able to restore vision for individuals suffering from eye damage.

While doing their research, the biggest hurdle in front of the scientists was the way with which to handle the paradoxical demands of the charge transport. This is because it required both photoexcitation and inhibition. Through constant experimentation, they reached a novel idea where they introduced two bulk heterojunctions two distinct layers in the device. The responsibility of one layer would be to work as a photo-responsive active layer, while the other would be a floating gate.

With further investigation, the group finally managed to make a fully functioning seven-layer device. The first layer of the technology is a PVA (Polyvinyl Alcohol), a dielectric. Right after this layer sits the first heterojunction. Right after comes PCVN (Polyvinyl-Cinnamate), which is another dielectric. Underneath that, there is another layer of PVA, right after the second heterojunction, after which there is a PCVN layer and then, at last, the gate.

After completion of the device, the team came upon another obstacle in the form of having no test for the new technology. Thus, they developed one known as ‘active adaptation index,’ which can be used to judge the human eye on its adaptation process and then to compare it with the new OAAT. The test showed that the results from both were remarkably close.

The team has stated that this new device is a huge step taken towards the development of adaptive devices with applications in robotics as well as devices that would be used as an alternative to human organs.

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