Engineering team develops novel miniaturized organic semiconductor

Science Daily  October 8, 2020
Organic Field Effect Transistors (OFETs) have the advantage of being flexible when compared with their inorganic counterparts like silicon. The main limitation on enhanced performance and mass production of OFETs lies in the difficulty in miniaturizing them. Products currently using OFETs in the market are still in their primitive forms, in terms of product flexibility and durability. The major problem now confronting scientists in reducing the size of OFETs is that the performance of the transistor will drop significantly with a reduction in size, partly due to the problem of contact resistance. Researchers in Hong Kong have created and demonstrated staggered structure monolayer OFETs created a record low normalized contact resistance of 40 ? -cm. Compared with conventional devices with a contact resistance of 1000 ? -cm, the new device can save 96% of power dissipation at contact when running the device at the same current level. The excessive heat generated in the system can be greatly reduced. They are working to further reduce the dimensions of OFETs and push them to a sub-micrometer scale. They are currently working to integrate the miniaturized OFETs into a flexible circuit onto a polymer microprobe for neural spike detections in-vivo on a mouse brain. In the future they plan to integrate the OFETs onto surgical tools such as catheter tube…read more. TECHNICAL ARTICLE 

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