World's first wooden transistor bark is stronger than its byte

pcgamer.com:

Transistors are one of the major building blocks of modern electronic devices. They allow us to regulate current in electronics which makes most of what we do regarding tech, including PC gaming possible. As tech moves forward we see these little miracles get even smaller, with large fabrication facilities already prepping for newer, tinier transistor manufacturing(opens in new tab). But it turns out making transistors smaller and made out of silicon isn't the only way, we could also be making them much larger and out of wood.

Tom's Hardware(opens in new tab) reports researchers at Linköping University in Norrköping(opens in new tab), and the Royal Institute of Technology in Stockholm, have managed to develop an early version of a wood electrochemical transistor (WECT) that appears to be the first of its kind ever logged. Though these wood chips are quite different to the silicon ones we're used to reporting on here.

Balsa wood is the current lumber of choice for WECT fabrication thanks to its consistent structure. It then goes through a chemical process to remove the lignin, which are organic polymers in the wood. They're replaced by PEDOT:PSS(opens in new tab), a highly efficient organic conductive polymer to make the wood conductive. Whether this stops them being truly wooden transistors has me a bit stumped.

Much like the Ents, WECT are far larger and slower than their silicon hobbit-sized counterparts. Rather than being measured in nanometres and gigahertz, these transistors are on the centimetre and regular hertz scale. With a 3cm transistor with a switching frequency of under one hertz, these are transistors even Treebeard would be proud of.

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