New Tech For Prolonged Power In Computers, Smartphones
To see this quantum signal, engineers and scientists who build electronic devices typically use external cooling techniques to compensate for the thermal energy in the electron environment. The filter created by researchers is one route to effectively filter out the thermal noise.
Dr Kyeongjae "KJ" Cho, professor of materials science and engineering and physics and an author of the paper, said transistors made from this filtering technique could revolutionise the semiconductor industry.
"Having to cool the thermal spread in modern transistors limits how small consumer electronics can be made," said Cho. "We devised a technique to cool the electrons internally — allowing reduction in operating voltage — so that we can create even smaller, more power efficient devices," said Cho.
Each time a device such as a smartphone or a tablet computes it requires electrical power for operation. Reducing operating voltage would mean longer shelf lives for these products and others. Lower power devices could mean computers worn with or on top of clothing that would not require an outside power source, among other things, researchers said.
To create the technology, researchers added a chromium oxide thin film onto the device. That layer, at room temperature, filtered the cooler, stable electrons and provided stability to the device. The study was published in the journal Nature Communications.
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